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Positive integer with large prime factors
A k-rough number, as defined by Finch in 2001 and 2003, is a positive integer whose prime factors are all greater than or equal to k. k-roughness has alternately
Rough_number
the original on 2024-02-24. Retrieved 2024-06-16. Wikifunctions has an unusual number checking function. Weisstein, Eric W. "Rough Number". MathWorld.
Unusual_number
Natural number
proper diagonals. When doing quick estimates, 3 is a rough approximation of π, 3.1415..., and a very rough approximation of e, 2.71828... 3 is the first Mersenne
3
1977 studio album by Pete Townshend and Ronnie Lane
Rough Mix is an album by Pete Townshend, guitarist with the Who, and Ronnie Lane, former bassist with Small Faces and Faces. The album was released in
Rough_Mix
Integer having only small prime factors
{Z} } . Highly composite number Rough number Round number Størmer's theorem Unusual number "P-Smooth Numbers or P-friable Number". GeeksforGeeks. 2018-02-12
Smooth_number
US Army cavalry regiment (1898)
The Rough Riders was a nickname given to the 1st United States Volunteer Cavalry, one of three such regiments raised in 1898 for the Spanish–American
Rough_Riders
Approximation of a mathematical set
In computer science, a rough set, first described by Polish computer scientist Zdzisław I. Pawlak, is a formal approximation of a crisp set (i.e., conventional
Rough_set
English independent record label
Rough Trade Records is an independent record label based in London, England. It was formed in 1976 by Geoff Travis, who had opened a record store off
Rough_Trade_Records
Travel Company
1982, Rough Guides expanded into customised travel services in 2018. The first Rough Guide was The Rough Guide to Greece. In 1995, when Rough Guides
Rough_Guides
American animation studio
Rough Draft Studios, Inc. is an American animation studio based in Glendale, California, with a sister studio Rough Draft Korea located in Seoul, South
Rough_Draft_Studios
2026 studio album by the Rolling Stones
YouTube and streaming services on 5 May 2026 along with double A-side "Rough and Twisted", which had previously been released only in extremely limited
Foreign_Tongues
Dog breed
The Rough Collie or Long-Haired Collie is a British breed of long-coated herding dog of medium to large size. It is identical to the Smooth Collie in
Rough_Collie
still designated as part of the series by their catalogue number prefix, "RGNET". "List of Rough Guide Albums". Retrieved 18 September 2016. "World Music
List_of_Rough_Guide_albums
Stage in the film editing process
In filmmaking, the rough cut (also known as the first cut or editor's cut) is the second of three stages of offline editing. The term originates from
Rough_cut
Unrecognised micronation in the North Sea
unrecognised micronation on HM Fort Roughs (also known as Roughs Tower), an offshore platform in the North Sea. It is situated on Rough Sands, a sandbar located
Principality_of_Sealand
Form of play fighting
Rough-and-tumble play, also called play fighting, is a form of play where participants compete with one another attempting to obtain certain advantages
Rough-and-tumble_play
Number divisible only by 1 and itself
A prime number (or a prime) is a natural number greater than 1 that is not a product of two smaller natural numbers. A natural number greater than 1 that
Prime_number
16th-century war between Scotland and England
The Rough Wooing (Scottish Gaelic: An t-Suirghe Chnaparra; December 1543 – March 1551), also known as the Eight Years' War, was part of the Anglo-Scottish
Rough_Wooing
Species of mammal
The rough-toothed dolphin (Steno bredanensis) is a species of dolphin that lives in deep warm and tropical waters around the world. It was first described
Rough-toothed_dolphin
New Zealand band
Coconut Rough were a short-lived New Zealand pop/new wave band formed in 1982. Despite their 1983 first single, "Sierra Leone", hitting the top five,
Coconut_Rough
2016 single by GFriend
number 3 on the year-end Gaon Digital Chart for 2016 and was the best selling song of the year in South Korea with 1,903,126 downloads sold. "Rough"
Rough_(song)
Area in Jersey, Channel Islands
Queen's Rock and Prince's Rock are sizeable rocky outcrops which form a rough number 7 shape. The peaks of King's and Queen's Rock are vegetated - mostly
Le_Hocq
Branch of pure mathematics
algebra. The rough subdivision of number theory into its modern subfields—in particular, analytic and algebraic number theory. Algebraic number theory may
Number_theory
Numbers obtained by adding the two previous ones
month, the number of pairs of rabbits is equal to the number of mature pairs (that is, the number of pairs in month n – 2) plus the number of pairs alive
Fibonacci_sequence
Canadian football team season
The 1979 Ottawa Rough Riders finished in second place in the Eastern Conference with an 8–6–2 record. Prior to the 2015 season, the 1979 season was the
1979 Ottawa Rough Riders season
1979_Ottawa_Rough_Riders_season
1986 single by ZZ Top
"Rough Boy" is a song by the American rock band ZZ Top. It was released by Warner Bros. Records in the US in March 1986, as the third single from their
Rough_Boy
Scottish footballer (born 1951)
Alan Roderick Rough MBE (/rʌf/; born 25 November 1951) is a Scottish former professional footballer who played as a goalkeeper. He won 53 caps for Scotland
Alan_Rough
Number, non-palindrome after repeated sum with reverse
Landingham as a rough anagram of "Cheryl", his girlfriend's first name. The reverse-and-add process produces the sum of a number and the number formed by reversing
Lychrel_number
Species of amphibian known for strong toxicity
The rough-skinned newt or roughskin newt (Taricha granulosa) is a North American newt known for the strong toxin exuded from its skin. A stocky newt with
Rough-skinned_newt
American singer-songwriter (born 1941)
indicating "universal acclaim". In its first week of release Rough and Rowdy Ways reached number one on the UK album chart, making Dylan "the oldest artist
Bob_Dylan
Highway system of the United States of America
generally numbered to end in a 1 or a 0; however, extensions and truncations have made this distinction largely meaningless. These guidelines are very rough, and
United States Numbered Highway System
United_States_Numbered_Highway_System
Integer having a non-trivial divisor
either all below or all above some fixed (prime) number. Such numbers are called smooth numbers and rough numbers, respectively. Mathematics portal Canonical
Composite_number
Memorial in Virginia, USA
The Rough Riders Memorial is a memorial in Arlington National Cemetery in Arlington County, Virginia, in the United States that commemorates those members
Rough_Riders_Memorial
such as Rough Trade, Rounder Records, Jumbo and Sound It Out. It is compiled by the Official Charts Company (OCC), and each week's number one is first
List of Official Record Store Chart number ones from the 2020s
List_of_Official_Record_Store_Chart_number_ones_from_the_2020s
the UK Official Indie Chart number-one hits of the 1980s, as compiled by MRIB. List of UK Independent Albums Chart number ones of the 1980s 1980s in music
List of UK Independent Singles Chart number ones of the 1980s
List_of_UK_Independent_Singles_Chart_number_ones_of_the_1980s
Number used for counting
natural-number results: subtracting a larger natural number from a smaller one results in a negative number and dividing one natural number by another
Natural_number
Belgian breed of dog
varieties based on coat type and colour: the long-haired black Groenendael; the rough-haired fawn Laekenois; the short-haired fawn Malinois, and the long-haired
Belgian_Shepherd
1989 studio album by Galaxie 500
released in 1989 on Rough Trade Records. In 2010, the album was re-issued and peaked at number 45 on the UK Independent Albums Chart and number 10 on the UK
On_Fire_(Galaxie_500_album)
English rock band
extremely limited quantities a physical-only release of their new single "Rough and Twisted" from their then-untitled new forthcoming album. It was reported
The_Rolling_Stones
2018 Russian film
A Rough Draft (Russian: Черновик, romanized: Chernovik) is a 2018 Russian science fiction film directed by Sergey Mokritskiy, based on the 2005 novel
A_Rough_Draft
1983 studio album by Aztec Camera
Aztec Camera. It was released in February 1983 through Rough Trade Records. It reached number 22 on the UK Albums Chart in April 1983. Following the demise
High_Land,_Hard_Rain
1981 compilation album by NME
(C)assette 81) and released in conjunction with the record label Rough Trade. Featuring a number of contemporary musical acts and performers, it was intended
C81_(album)
Number equal to the sum of its proper divisors
In number theory, a perfect number is a positive integer that is equal to the sum of its positive proper divisors, that is, divisors excluding the number
Perfect_number
2015 wildfire in Central California
The Rough Fire was a major wildfire in Fresno County, California, and the largest of the 2015 California wildfire season. The fire was ignited by a lightning
Rough_Fire
1972 studio album by Big Star
Drummer Jody Stephens recalled, "Alex would come in and put down something rough and edgy and Chris would come in and add some sweet-sounding background
Number_1_Record
Country club in Pennsylvania, United States
course. The narrow fairway is guarded by a bunker on the right and deep rough on the left. A successful approach shot must avoid the water hazard protecting
Aronimink_Golf_Club
This list shows all the albums that have been number one on the official chart list in Norway, VG-lista. The albums chart started as a top 20 chart in
List of number-one albums in Norway
List_of_number-one_albums_in_Norway
Ratio of inertial to viscous forces acting on a liquid
In fluid dynamics, the Reynolds number (Re) is a dimensionless quantity that helps predict fluid flow patterns in different situations by measuring the
Reynolds_number
Species of tree native to Australia
macadamia nut, bauple nut, prickly macadamia, Queensland nut, rough-shelled bush nut and rough-shelled Queensland nut. The species has dense foliage and grows
Macadamia_tetraphylla
Reservoir in Kentucky, United States
The Rough River Lake is a Y-shaped reservoir located in Breckinridge, Hardin, and Grayson counties in Kentucky, United States, about 70 miles southwest
Rough_River_Lake
2020 EP by Alan Doyle
Rough Side Out is an EP by Alan Doyle, released on February 14, 2020. It is his fourth studio release as a solo artist, and his first EP. The EP debuted
Rough_Side_Out
sources: statistics on rough sleepers (i.e. people sleeping on the streets), statistics on those in temporary accommodation, the number of people housed in
Homelessness_in_England
American soldier (1873–1898)
the prominent Fish family. During the Spanish–American War he joined the Rough Riders in the invasion of Cuba, where he died in the Battle of Las Guasimas
Hamilton Fish II (Rough Rider)
Hamilton_Fish_II_(Rough_Rider)
In math, a number that is equal to the sum of some of its factors
In number theory, an Erdős–Nicolas number is a number that is not perfect, but that equals one of the partial sums of its divisors. That is, a number n
Erdős–Nicolas_number
1979 studio album by the Raincoats
independent label Rough Trade. The album is perhaps best known for its off-kilter cover of "Lola" by the Kinks. The album peaked at number 5 on the UK Indie
The_Raincoats_(album)
1987 studio album by the Smiths
the English rock band the Smiths. It was released on 28 September 1987 by Rough Trade Records, a few months after the band had broken up. All of the songs
Strangeways,_Here_We_Come
Species of plant
has media related to Chaerophyllum temulum. Chaerophyllum temulum, the rough chervil, is a species of flowering plant in the family Apiaceae. Unlike
Chaerophyllum_temulum
Metric in epidemiology
In epidemiology, the basic reproduction number, or basic reproductive number (sometimes called basic reproduction ratio or basic reproductive rate), denoted
Basic_reproduction_number
Species of lizard
The rough-snouted giant gecko (Rhacodactylus trachyrhynchus), also known as the greater rough-snouted gecko or tough-snouted gecko, is a species of gecko
Rhacodactylus_trachyrhynchus
2015 live album by Björk
Rough Trade record shops in very limited quantities and is published by One Little Indian. Its online allotment quickly sold out but a limited number
Vulnicura_Live
Figurate number
The triangular lattice representing the n {\displaystyle n} th triangular number contains n {\displaystyle n} rows: the first row contains one point, the
Triangular_number
English rock band (1982–1987)
of a string section. The Queen Is Dead reached number two on the UK charts. A legal dispute with Rough Trade had delayed the album by almost seven months
The_Smiths
Product of an integer with itself
In mathematics, a square number or perfect square is an integer that is the square of an integer; in other words, it is the product of some integer with
Square_number
American singer (1927–2012)
Pavilion in Los Angeles, but opted instead for a design blending in with the rough terrain of the Ozark Mountains. The Larson Company of Tucson, Arizona, fabricated
Andy_Williams
The Rough Sleepers Initiative was an initiative by the Government of the United Kingdom's Rough Sleepers Unit (RSU), which resulted from a campaign by
Rough_Sleepers_Initiative
Historic cemetery in Drew County, Arkansas
The Rough and Ready Cemetery is a cemetery in Drew County, Arkansas. It is located about 1 mile (1.6 km) south of the Monticello Civic Center on Arkansas
Rough_and_Ready_Cemetery
1980 single by Rough Trade
"High School Confidential" is a song by Canadian new wave band Rough Trade, from their 1980 album Avoid Freud. The band's breakthrough Top 40 hit in Canada
High School Confidential (Rough Trade song)
High_School_Confidential_(Rough_Trade_song)
American actor (born 1944)
western Tombstone (1993), Sgt. Buckey O'Neill in the epic war miniseries Rough Riders (1997), and the Stranger in the crime comedy The Big Lebowski (1998)
Sam_Elliott
Painting by Ogata Kōrin
Rough Waves (Japanese: 波濤 図 屏風) is a painting by the Japanese artist Ogata Kōrin, on a two-panel byōbu (folding screen). The work was created c. 1704 –
Rough_Waves
1932 Australian nuisance wildlife management campaign
ineffective, as the truck was unable to gain on the birds, and the ride was so rough that the gunner was unable to fire any shots. By 8 November, six days after
Emu_War
1980 studio album by The Fall
November 1980, it was the band's first studio album on Rough Trade. The album reached number one on the UK Independent Chart, spending 29 weeks on the
Grotesque_(After_the_Gramme)
1983 song by Michael Jackson
liked her, people can be strange, and "it's human nature". He recorded a rough demo of the song in his studio while the Toto song "Africa" was being mixed
Human Nature (Michael Jackson song)
Human_Nature_(Michael_Jackson_song)
Singer-songwriter and actress (1939–2023)
Retrieved August 15, 2021. "Ike & Tina Turner – Rough, Tour 1978 – Konzertplakat, 216,40 €". Ike & Tina Turner – Rough, Tour 1978 – Konzertplakat, 216,40 €. Archived
Tina_Turner
Subjective lists of features and structures
from the original on December 1, 2020. Retrieved October 16, 2020. The Rough Guide To England. 1994. p. 596. Tehrani, Amirmahdi; Khagani, Saied; Mansoori
Wonders_of_the_World
American comedian and actor (born 1972)
Harmful If Swallowed (2003), Retaliation (2005), Vicious Circle (2006), Rough Around the Edges: Live from Madison Square Garden (2007), and Isolated Incident
Dane_Cook
Prime number of the form 2^n – 1
mathematics, a Mersenne prime is a prime number that is one less than a power of two. That is, it is a prime number of the form Mn = 2n − 1 for some integer
Mersenne_prime
Irish novelist and playwright (1906–1989)
write creatively in the French language. In the late 1930s, he wrote a number of short poems in that language and their sparseness—in contrast to the
Samuel_Beckett
Wolf population estimates per country
official standpoint considers the optimal population to be 100–200. At rough scale the distribution range includes the whole country. Population numbers
Number of gray wolves by country
Number_of_gray_wolves_by_country
Films that present sexually explicit subject matter
comedian Richard Belzer in Cafe Flesh. Amis, Martin (17 March 2001). "A rough trade". Guardian.co.uk. Archived from the original on 24 May 2020. Retrieved
Pornographic_film
1972 studio album by John Prine
Diamonds in the Rough is the second studio album by American country-folk singer-songwriter John Prine, released in 1972. Diamonds in the Rough was recorded
Diamonds_in_the_Rough_(album)
Exploring properties of the integers with complex analysis
distribution of the prime numbers; that is, a rough description of how many primes are smaller than a given number. Gauss, amongst others, after computing a
Analytic_number_theory
Identifier of mains electricity supply point
A Meter Point Administration Number, also known as MPAN, Supply Number or S-Number, is a 21-digit reference used in Great Britain to uniquely identify
Meter Point Administration Number
Meter_Point_Administration_Number
Species of shrub
Pittosporum revolutum, commonly known as rough-fruited pittosporum, yellow pittosporum, Brisbane laurel or wild yellow jasmine, is a flowering plant in
Pittosporum_revolutum
2005 single by The Rolling Stones
"Rough Justice" is a song by the English rock band the Rolling Stones that was released as a double A-side single with "Streets of Love" from their 2005
Rough Justice (Rolling Stones song)
Rough_Justice_(Rolling_Stones_song)
2003 video game
Pajama Sam: Life Is Rough When You Lose Your Stuff! (also known as Pajama Sam 4) is a computer game made for children ages 5-8. Sam's Pajama Man comic
Pajama Sam: Life Is Rough When You Lose Your Stuff!
Pajama_Sam:_Life_Is_Rough_When_You_Lose_Your_Stuff!
very different song title. The songs are listed in the index by accession number, rather than (for example) by subject matter or in order of importance.
List of folk songs by Roud number
List_of_folk_songs_by_Roud_number
Numbers whose aliquot sums form a cyclic sequence
is the number of numbers in this cycle. If the period of the sequence is 1, the number is a sociable number of order 1, or a perfect number—for example
Sociable_number
British actor (born 1959)
Harrison Ford hit him with a boat hook, giving him a permanent scar. Bean's rough-cut looks made him a patent choice for a villain, and his role in Patriot
Sean_Bean
1995 single by Northern Uproar
"Rollercoaster"/"Rough Boy" is the debut single from self-titled debut album by English band Northern Uproar. It reached number 41 on the UK Singles Chart
Rollercoaster/Rough_Boy
1990 studio album by Galaxie 500
studio album by American indie rock band Galaxie 500, released in 1990 on Rough Trade Records. The title This Is Our Music was derived from the 1961 album
This Is Our Music (Galaxie 500 album)
This_Is_Our_Music_(Galaxie_500_album)
President of the United States from 1901 to 1909
successful naval war against Spain. He resigned to help form and lead the Rough Riders, a unit that fought the Spanish Army in Cuba to great publicity.
Theodore_Roosevelt
Tamiya Rough Rider was the very first of Tamiya's SRB (Special racing buggies) series. These according to Tamiya made Radio Control Models accessible
Tamiya_Rough_Rider
2006 single by Paulini
Audius Mtawarira. "Rough Day" was released physically on 22 January 2006, as the lead single from the album. The song peaked at number 26 on the ARIA Singles
Rough_Day
Total number of living humans on Earth
century. The total number of humans who have ever lived is estimated to be approximately 100 billion. Such estimates can only be rough approximations, as
World_population
Typeface family
Costello and released by Letraset in 1983. It has a number of distinctive characteristics, including rough edges, irregular curves, and high horizontal strokes
Papyrus_(typeface)
Number whose divisors summed twice over equal twice itself
In number theory, a superperfect number is a positive integer n that satisfies σ 2 ( n ) = σ ( σ ( n ) ) = 2 n , {\displaystyle \sigma ^{2}(n)=\sigma (\sigma
Superperfect_number
Property of a number
In mathematics, the persistence of a number is the number of times one must apply a given operation to an integer before reaching a fixed point at which
Persistence_of_a_number
1983 studio album by The Fall
group the Fall, released in December 1983 on Rough Trade Records. The record gave the band their first number one album on the UK Independent Chart since
Perverted_by_Language
Cell organelle that processes proteins
Latin for "little net". It is a type of organelle made up of two subunits – rough endoplasmic reticulum (RER), and smooth endoplasmic reticulum (SER). The
Endoplasmic_reticulum
Unsheltered people, "rough sleepers", are a small minority of homeless people. Homeless charity Shelter estimated in 2024 that the number of people in England
Homelessness in the United Kingdom
Homelessness_in_the_United_Kingdom
ROUGH NUMBER
ROUGH NUMBER
Surname or Lastname
English and Irish (pronounced Bow)
English and Irish (pronounced Bow) : variant spelling of Bow.English (pronounced Boff) : from a Norman form of Old French boeuf ‘bull’, ‘ox’, hence a nickname for a powerfully built man, or in some cases a metonymic occupational name for a herdsman.
Boy/Male
Irish
Rough.
Boy/Male
Gaelic Irish
Rough.
Surname or Lastname
English
English : habitational name from any of various places called Brough, of which there are several in Yorkshire and Derbyshire as well as elsewhere. The place name is from Old English burh ‘fortress’ and in most cases these are the sites of Roman fortifications. The pronunciation is usually ‘bruff’.Possibly an altered spelling of German Brauch.
Boy/Male
Tamil
Rough, Rugged
Surname or Lastname
English
English : habitational name from a place so named in Humberside. Recorded in Domesday Book as Rutha, the place name may derive from Old Norse hrúedhr ‘rough shaly ground’.
Boy/Male
Irish
Rough peace.
Boy/Male
Gaelic
Rough.
Boy/Male
Gaelic
Rough.
Boy/Male
Gaelic
Rough.
Surname or Lastname
English (Cornwall)
English (Cornwall) : unexplained.
Surname or Lastname
Scottish
Scottish : variant of Tulloch. In Scotland it is pronounced tyookh.English : nickname for a valiant or stubborn person, from Middle English togh, tow(e) ‘steadfast’.
Boy/Male
Australian, British, Christian, English, French, Irish
Spear-friend; Rough; Little Rough One
Boy/Male
Gaelic, Hindu, Indian, Irish
Rough; Small Rough One
Boy/Male
Irish
Rough; rugged.
Boy/Male
Gaelic Irish
Rough.
Boy/Male
Hindu
Rough, Rugged
Boy/Male
Gaelic
Rough.
Boy/Male
Gaelic
Rough.
Surname or Lastname
English
English : habitational name from any of various places, for example in Cheshire and Derbyshire, so named from Old English hÅh ‘spur of a hill’ (literally ‘heel’). This widespread surname is especially common in Lancashire.Irish (County Limerick) : variant of Haugh 1.
ROUGH NUMBER
ROUGH NUMBER
Boy/Male
Hindu, Indian, Punjabi, Sikh, Traditional
Highest Truth
Boy/Male
Tamil
Paramjeet | பரமஜீத
Highest success, Supremely victorious, The perfect winner, Ultimate victorious
Surname or Lastname
English, Irish, or possibly German
English, Irish, or possibly German : altered form of Flemings, Fleming, or Flemming.
Boy/Male
British, English
Long Lived
Boy/Male
Indian, Punjabi, Sikh
Lord of the Forest
Boy/Male
Hindu, Indian
Made from Leaf
Boy/Male
Indian, Punjabi, Sikh
Beautiful Like a Garden
Girl/Female
Indian
Durav grass
Boy/Male
Arabic, Muslim
Moon Light
Girl/Female
Australian, British, English, German
Light; High One
ROUGH NUMBER
ROUGH NUMBER
ROUGH NUMBER
ROUGH NUMBER
ROUGH NUMBER
superl.
Not easily separated; viscous; clammy; tenacious; as, tough phlegm.
superl.
Severe; violent; as, a tough storm.
n.
Hastily or carelessly done; wanting finish; incomplete; as, a rough estimate; a rough draught.
n.
Tempestuous; boisterous; stormy; as, rough weather; a rough day.
n.
Marked by coarseness; shaggy; ragged; disordered; -- said of dress, appearance, or the like; as, a rough coat.
n.
Not polished; uncut; -- said of a gem; as, a rough diamond.
a.
Like dough; soft.
n.
Austere; harsh to the taste; as, rough wine.
v. t.
To render rough; to roughen.
n.
Not courteous or kind; harsh; rude; uncivil; as, a rough temper.
n.
Marked by severity or violence; harsh; hard; as, rough measures or actions.
superl.
Stiff; rigid; not flexible; stubborn; as, a tough bow.
adv.
In a rough manner; rudely; roughly.
v. i.
To paint the face or cheeks with rouge.
n.
Loud and hoarse; offensive to the ear; harsh; grating; -- said of sound, voice, and the like; as, a rough tone; rough numbers.
n.
Having inequalities, small ridges, or points, on the surface; not smooth or plain; as, a rough board; a rough stone; rough cloth.
v. t.
To tint with rouge; as, to rouge the face or the cheeks.
a.
Feather-footed; as, a rough-footed dove.
v. t.
To cut or make in a hasty, rough manner; -- with out; as, to rough out a carving, a sketch.