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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
40263791805275838 ~1990
40264043805280878 ~1990
40265003805300078 ~1990
402651674026516719 ~1992
40265471805309438 ~1990
40265999805319998 ~1990
40267057120801171110 ~1993
40267163805343278 ~1990
40267523805350478 ~1990
40268303805366078 ~1990
40268471805369438 ~1990
402684972416109839 ~1992
40268603805372078 ~1990
40268759805375198 ~1990
40269191805383838 ~1990
40269959805399198 ~1990
40270151805403038 ~1990
40271639805432798 ~1990
402728532416371199 ~1992
40272863805457278 ~1990
40272959805459198 ~1990
40273451805469038 ~1990
402736277249252879 ~1993
40273679805473598 ~1990
40274231805484638 ~1990
Exponent Prime Factor Digits Year
40274291805485838 ~1990
40274603805492078 ~1990
402749332416495999 ~1992
40275299805505998 ~1990
40275419805508398 ~1990
40275551805511038 ~1990
40275731805514638 ~1990
40276199805523998 ~1990
40276259805525198 ~1990
40276499805529998 ~1990
40276823805536478 ~1990
402770234027702319 ~1992
40277183805543678 ~1990
40278167193335201710 ~1994
40279091805581838 ~1990
40279139805582798 ~1990
40279163805583278 ~1990
40279331805586638 ~1990
40279619805592398 ~1990
40280593257795795310 ~1994
40280699805613998 ~1990
40280963805619278 ~1990
402810893222487139 ~1992
40281599805631998 ~1990
40281811330310850310 ~1994
Exponent Prime Factor Digits Year
40282559805651198 ~1990
40282799805655998 ~1990
40283651805673038 ~1990
40284479805689598 ~1990
40284599805691998 ~1990
40284899805697998 ~1990
40285403805708078 ~1990
402854572417127439 ~1992
40286171805723438 ~1990
402863812417182879 ~1992
40286663805733278 ~1990
402867674028676719 ~1992
402868098863097999 ~1993
40286819805736398 ~1990
40288439805768798 ~1990
402886212417317279 ~1992
40289003805780078 ~1990
40289603805792078 ~1990
402898036446368499 ~1993
40289999805799998 ~1990
40290083805801678 ~1990
40291379805827598 ~1990
40291403805828078 ~1990
40292471805849438 ~1990
40292639805852798 ~1990
Exponent Prime Factor Digits Year
40293023805860478 ~1990
402931012417586079 ~1992
402931098864483999 ~1993
40293131805862638 ~1990
40294043805880878 ~1990
40294679805893598 ~1990
40294799805895998 ~1990
402951473223611779 ~1992
402952732417716399 ~1992
40296491805929838 ~1990
40296671805933438 ~1990
40296731805934638 ~1990
40297151805943038 ~1990
40297319805946398 ~1990
402981194029811919 ~1992
402993172417959039 ~1992
40301711806034238 ~1990
403026732418160399 ~1992
40303871806077438 ~1990
40303979806079598 ~1990
40304279806085598 ~1990
40305059806101198 ~1990
40305371806107438 ~1990
403061873224494979 ~1992
403064899673557379 ~1993
2148
GIMPS The Prime Pages FactorDb.com
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26-07-05