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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
194031221116418732710 ~1997
1940498993880997999 ~1996
1940516993881033999 ~1996
1940548313881096639 ~1996
1940551433881102879 ~1996
1940581313881162639 ~1996
194059181155247344910 ~1997
1940610713881221439 ~1996
1940631233881262479 ~1996
1940640233881280479 ~1996
194072911931549972910 ~1999
1940771993881543999 ~1996
194088617116453170310 ~1997
194094781116456868710 ~1997
1941090593882181199 ~1996
1941130433882260879 ~1996
194116567194116567110 ~1997
1941259313882518639 ~1996
1941276233882552479 ~1996
194131571155305256910 ~1997
194138621155310896910 ~1997
194142673116485603910 ~1997
1941439913882879839 ~1996
1941449033882898079 ~1996
1941462233882924479 ~1996
Exponent Prime Factor Digits Year
1941481313882962639 ~1996
1941523793883047599 ~1996
1941575393883150799 ~1996
1941579593883159199 ~1996
1941656513883313039 ~1996
1941692033883384079 ~1996
1941719033883438079 ~1996
1941826433883652879 ~1996
1941892793883785599 ~1996
1941928793883857599 ~1996
1941988433883976879 ~1996
1941993713883987439 ~1996
194199781116519868710 ~1997
1942008233884016479 ~1996
1942085691048726272711 ~1999
1942119713884239439 ~1996
194218933116531359910 ~1997
194221691349599043910 ~1998
1942227113884454239 ~1996
1942279913884559839 ~1996
1942285793884571599 ~1996
1942287113884574239 ~1996
1942370033884740079 ~1996
1942427033884854079 ~1996
1942547993885095999 ~1996
Exponent Prime Factor Digits Year
1942573313885146639 ~1996
1942594193885188399 ~1996
194261477116556886310 ~1997
1942616633885233279 ~1996
1942655633885311279 ~1996
194267987155414389710 ~1997
1942766393885532799 ~1996
1942822793885645599 ~1996
194282533116569519910 ~1997
194283941116570364710 ~1997
1942867913885735839 ~1996
194297633116578579910 ~1997
1943011793886023599 ~1996
1943023433886046879 ~1996
194303413116582047910 ~1997
1943045033886090079 ~1996
1943057633886115279 ~1996
1943075633886151279 ~1996
1943077193886154399 ~1996
1943187593886375199 ~1996
194319751194319751110 ~1997
1943219993886439999 ~1996
1943282033886564079 ~1996
1943330993886661999 ~1996
194343341155474672910 ~1997
Exponent Prime Factor Digits Year
1943443433886886879 ~1996
194345807505299098310 ~1998
1943684393887368799 ~1996
194370973116622583910 ~1997
194394043311030468910 ~1998
194396357155517085710 ~1997
1943974913887949839 ~1996
1944110513888221039 ~1996
1944122331049826058311 ~1999
194415037116649022310 ~1997
1944168233888336479 ~1996
194426833116656099910 ~1997
1944306113888612239 ~1996
1944349313888698639 ~1996
1944464633888929279 ~1996
1944476993888953999 ~1996
194448313116668987910 ~1997
194453953466689487310 ~1998
194460223466704535310 ~1998
1944617633889235279 ~1996
1944641633889283279 ~1996
194466761116680056710 ~1997
194472301116683380710 ~1997
1944778313889556639 ~1996
1944786713889573439 ~1996
2757
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25-05-04