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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
42926711858534238 ~1991
42927299858545998 ~1991
42927551858551038 ~1991
42927671111611944710 ~1993
42928019858560398 ~1991
42928019103027245710
42928631858572638 ~1991
42928871858577438 ~1991
42929423858588478 ~1991
42930311858606238 ~1991
429318434293184319 ~1992
42931943858638878 ~1991
429321773434574179 ~1992
42932243858644878 ~1991
429332812575996879 ~1992
42933623858672478 ~1991
42934691858693838 ~1991
429357316869716979 ~1993
42935771858715438 ~1991
42936083858721678 ~1991
42936251858725038 ~1991
429365332576191999 ~1992
42937679858753598 ~1991
429382493435059939 ~1992
42938411858768238 ~1991
Exponent Prime Factor Digits Year
42938579858771598 ~1991
42939359858787198 ~1991
42939503858790078 ~1991
42939503111642707910
429404812576428879 ~1992
429409939447018479 ~1993
429411893435295139 ~1992
42941399858827998 ~1991
42942923858858478 ~1991
42944483858889678 ~1991
42946223858924478 ~1991
429468773435750179 ~1992
42948133481019089710 ~1995
42948551858971038 ~1991
429486293435890339 ~1992
42949559858991198 ~1991
429512693436101539 ~1992
42951659859033198 ~1991
42951803859036078 ~1991
42952223859044478 ~1991
429546972577281839 ~1992
42954913128864739110 ~1993
42956363859127278 ~1991
42956723859134478 ~1991
42957179859143598 ~1991
Exponent Prime Factor Digits Year
42957311859146238 ~1991
42958271859165438 ~1991
42959711859194238 ~1991
42960371859207438 ~1991
42960563859211278 ~1991
429606772577640639 ~1992
429606773436854179
429612314296123119 ~1992
42961739859234798 ~1991
42962099859241998 ~1991
42962107249180220710 ~1994
429623573436988579 ~1992
429628636874058099 ~1993
42963643455414615910 ~1995
42963779859275598 ~1991
429657113437256899 ~1992
42966179859323598 ~1991
42966251859325038 ~1991
429668772578012639 ~1992
42967343859346878 ~1991
42967451859349038 ~1991
429683834296838319 ~1992
42969263859385278 ~1991
42969779859395598 ~1991
429703793437630339 ~1992
Exponent Prime Factor Digits Year
42970973266420032710 ~1994
42971039309391480910 ~1994
42971111859422238 ~1991
42971303859426078 ~1991
42973571859471438 ~1991
429736812578420879 ~1992
42973823859476478 ~1991
429748012578488079 ~1992
42975203859504078 ~1991
429754612578527679 ~1992
42976019859520398 ~1991
42976211859524238 ~1991
42976319859526398 ~1991
42977279859545598 ~1991
42977531859550638 ~1991
42977663859553278 ~1991
42977723859554478 ~1991
429778972578673839 ~1992
429791693438333539 ~1992
42980159859603198 ~1991
42981803859636078 ~1991
429821532578929199 ~1992
42982249171928996110 ~1994
42982679859653598 ~1991
429840172579041039 ~1992
1995
GIMPS The Prime Pages FactorDb.com
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25-07-08