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Small Mersenne Prime Factors
Prime numbers of the form Mp= 2p − 1 are called Mersenne primes. For Mp to be prime, p must also be prime.
Any factor q of a Mersenne number 2p − 1 must be of the form 2kp + 1, where integer k ≥ 0. Furthermore, q must be 1 or 7 mod 8.
Exponent Prime Factor Digits Year
451645034516450319 ~1992
451646834516468319 ~1992
45166463903329278 ~1991
451672577226761139 ~1993
45168191903363838 ~1991
45169643903392878 ~1991
45170123903402478 ~1991
45171443903428878 ~1991
45172559903451198 ~1991
45173171903463438 ~1991
45174263903485278 ~1991
45175271903505438 ~1991
45176639903532798 ~1991
451769772710618639 ~1992
45177131903542638 ~1991
45177683903553678 ~1991
45177719903554398 ~1991
45178943903578878 ~1991
451797532710785199 ~1992
451800612710803679 ~1992
451803293614426339 ~1992
451809732710858399 ~1992
451810994518109919 ~1992
45181991903639838 ~1991
451824776325546799 ~1993
Exponent Prime Factor Digits Year
45182519903650398 ~1991
45182759903655198 ~1991
45183893108441343310 ~1993
45184703903694078 ~1991
45184739903694798 ~1991
45185663903713278 ~1991
451873913614991299 ~1992
45190499903809998 ~1991
45192461216923812910 ~1994
451924812711548879 ~1992
45192923903858478 ~1991
45193007216926433710 ~1994
451988212711929279 ~1992
45199631903992638 ~1991
45200663904013278 ~1991
45201047117522722310 ~1993
45201599904031998 ~1991
45202571904051438 ~1991
452030093616240739 ~1992
45203759904075198 ~1991
452048114520481119 ~1992
452049413616395299 ~1992
45205019904100398 ~1991
45206363904127278 ~1991
45206471904129438 ~1991
Exponent Prime Factor Digits Year
45207241207953308710 ~1994
45212003904240078 ~1991
452133914521339119 ~1992
45214223904284478 ~1991
45214283904285678 ~1991
45214439904288798 ~1991
452155612712933679 ~1992
45217019904340398 ~1991
45218819904376398 ~1991
452194678139504079 ~1993
452196593617572739 ~1992
45220079904401598 ~1991
452202914522029119 ~1992
45220319904406398 ~1991
45220363325586613710 ~1995
45221531904430638 ~1991
452233193617865539 ~1992
452233572713401439 ~1992
45224051904481038 ~1991
45224603904492078 ~1991
45224713135674139110 ~1994
452250532713503199 ~1992
452261412713568479 ~1992
452275372713652239 ~1992
45228671904573438 ~1991
Exponent Prime Factor Digits Year
45229631904592638 ~1991
452312813618502499 ~1992
452312932713877599 ~1992
45232091904641838 ~1991
45232139904642798 ~1991
45234191904683838 ~1991
45234251904685038 ~1991
45234551904691038 ~1991
452345513618764099
45235499904709998 ~1991
45235721171895739910 ~1994
45236351904727038 ~1991
452371912397571123111 ~1997
452384993619079939 ~1992
45238871904777438 ~1991
45239651904793038 ~1991
452406198143311439 ~1993
45241499904829998 ~1991
45243083904861678 ~1991
452432273619458179 ~1992
45243743904874878 ~1991
452456594524565919 ~1992
452465572714793439 ~1992
45246743108592183310 ~1993
45247211904944238 ~1991
1989
GIMPS The Prime Pages FactorDb.com
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25-05-04