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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
2637463315274926639 ~1997
2637509395275018799 ~1997
2637510235275020479 ~1997
2637548995275097999 ~1997
263757341211005872910 ~1998
2637633715275267439 ~1997
2637634315275268639 ~1997
263766361158259816710 ~1998
2637664795275329599 ~1997
2637703195275406399 ~1997
263772961158263776710 ~1998
263802037422083259310 ~1999
263810669369334936710 ~1999
2638158235276316479 ~1997
263826023633182455310 ~1999
2638299595276599199 ~1997
2638340712321739824911 ~2001
263835893158301535910 ~1998
263837507211070005710 ~1998
263840237158304142310 ~1998
263853971211083176910 ~1998
2638545235277090479 ~1997
2638680235277360479 ~1997
2638809715277619439 ~1997
2638822915277645839 ~1997
Exponent Prime Factor Digits Year
263883497369436895910 ~1999
2638848235277696479 ~1997
2638874515277749039 ~1997
263894377158336626310 ~1998
2639064131689001043311 ~2000
2639107915278215839 ~1997
263916833158350099910 ~1998
2639265835278531679 ~1997
263927221422283553710 ~1999
2639290795278581599 ~1997
263932147263932147110 ~1998
2639323795278647599 ~1997
2639343715278687439 ~1997
263937071475086727910 ~1999
2639442115278884239 ~1997
263954129211163303310 ~1998
2639649235279298479 ~1997
2639676595279353199 ~1997
2639689315279378639 ~1997
2639722315279444639 ~1997
2639834515279669039 ~1997
2639847715279695439 ~1997
2639875195279750399 ~1997
263988667263988667110 ~1998
2639890795279781599 ~1997
Exponent Prime Factor Digits Year
263990443263990443110 ~1998
2639908435279816879 ~1997
264005981211204784910 ~1998
264009041158405424710 ~1998
2640120715280241439 ~1997
2640128515280257039 ~1997
2640174235280348479 ~1997
2640214315280428639 ~1997
2640241439082430519311 ~2002
2640296635280593279 ~1997
2640346994066134364711 ~2001
2640352315280704639 ~1997
2640359395280718799 ~1997
2640438595280877199 ~1997
2640444715280889439 ~1997
2640570115281140239 ~1997
2640572035281144079 ~1997
2640670915281341839 ~1997
264069527211255621710 ~1998
264071233158442739910 ~1998
264073421158444052710 ~1998
2640739195281478399 ~1997
264075181158445108710 ~1998
264082837158449702310 ~1998
2640830515281661039 ~1997
Exponent Prime Factor Digits Year
264092407264092407110 ~1999
264094381158456628710 ~1998
2640944035281888079 ~1997
2640966115281932239 ~1997
2641009795282019599 ~1997
264105497211284397710 ~1998
264106541158463924710 ~1998
2641150315282300639 ~1997
2641258915282517839 ~1997
2641301035282602079 ~1997
264133057158479834310 ~1998
2641348795282697599 ~1997
2641349635282699279 ~1997
2641493395282986799 ~1997
264161663633987991310 ~1999
264172813158503687910 ~1998
2641742692747412397711 ~2001
2641786195283572399 ~1997
264181397211345117710 ~1998
264188801158513280710 ~1998
264190561581219234310 ~1999
2641910995283821999 ~1997
264201361422722177710 ~1999
2642014195284028399 ~1997
264205859845458748910 ~2000
3177
GIMPS The Prime Pages FactorDb.com
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26-02-08