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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
28292711565854238 ~1989
28293263565865278 ~1989
282938272263506179 ~1991
28294319565886398 ~1989
28294523565890478 ~1989
28294811565896238 ~1989
28295231565904638 ~1989
28296251141481255110 ~1993
28297319565946398 ~1989
28297331565946638 ~1989
28297679565953598 ~1989
28297943565958878 ~1989
28298639565972798 ~1989
282992112829921119 ~1991
28299443565988878 ~1989
28299503565990078 ~1989
282995211697971279 ~1990
28299539565990798 ~1989
28299731565994638 ~1989
28299839565996798 ~1989
28299899565997998 ~1989
28299923565998478 ~1989
28300043566000878 ~1989
283002195094039439 ~1992
28300271566005438 ~1989
Exponent Prime Factor Digits Year
283003331698019999 ~1990
28300379566007598 ~1989
28300403566008078 ~1989
28300703566014078 ~1989
283009131698054799 ~1990
283011496226252799 ~1992
283014011698084079 ~1990
28301579566031598 ~1989
28301639566032798 ~1989
28302251566045038 ~1989
28302479566049598 ~1989
28302779566055598 ~1989
28302899566057998 ~1989
28303091566061838 ~1989
283037411698224479 ~1990
283041314528660979 ~1991
28304219566084398 ~1989
28304819566096398 ~1989
28305071566101438 ~1989
28305419566108398 ~1989
28305443566108878 ~1989
283058411698350479 ~1990
28305971566119438 ~1989
28306163566123278 ~1989
283071736793721539 ~1992
Exponent Prime Factor Digits Year
28307483566149678 ~1989
28308011566160238 ~1989
28308083566161678 ~1989
28308443566168878 ~1989
28308551566171038 ~1989
283089792830897919 ~1991
28309103566182078 ~1989
283092434529478899 ~1991
28309511566190238 ~1989
28309679566193598 ~1989
283105072264840579 ~1991
28310651566213038 ~1989
28310939566218798 ~1989
283111131698666799 ~1990
28311683566233678 ~1989
283117611698705679 ~1990
28311779566235598 ~1989
28312079566241598 ~1989
28312211566244238 ~1989
283125892265007139 ~1991
28313063566261278 ~1989
283130992265047939 ~1991
28313231566264638 ~1989
283134131698804799 ~1990
283134432831344319 ~1991
Exponent Prime Factor Digits Year
283141131698846799 ~1990
28314323566286478 ~1989
28314983566299678 ~1989
28315739566314798 ~1989
28315799566315998 ~1989
28316111566322238 ~1989
28316471566329438 ~1989
28316591566331838 ~1989
283169896229737599 ~1992
28318883566377678 ~1989
28319183566383678 ~1989
28319303566386078 ~1989
283193232831932319 ~1991
28319363566387278 ~1989
28319579566391598 ~1989
283196232831962319 ~1991
28319639566392798 ~1989
28319723566394478 ~1989
28319891566397838 ~1989
28320191566403838 ~1989
28320731566414638 ~1989
28321103566422078 ~1989
28321679566433598 ~1989
283217212265737699 ~1991
28322227186926698310 ~1993
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26-03-08