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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
25309799506195998 ~1989
25310471506209438 ~1989
253110371518662239 ~1990
25311551506231038 ~1989
25311659506233198 ~1989
253135792025086339 ~1990
25313999506279998 ~1989
25314563506291278 ~1989
253149314050388979 ~1991
253151171518907039 ~1990
25315319506306398 ~1989
25315403506308078 ~1989
25315943506318878 ~1989
253161971518971839 ~1990
25316279506325598 ~1989
253164614050633779 ~1991
253165137594953919 ~1992
253172211519033279 ~1990
25317263506345278 ~1989
25318343410157156710 ~1993
253184171519105039 ~1990
25319351506387038 ~1989
25319543506390878 ~1989
25319603506392078 ~1989
25320143506402878 ~1989
Exponent Prime Factor Digits Year
25320479506409598 ~1989
253217333545042639 ~1991
253222034051552499 ~1991
25322483506449678 ~1989
25322651506453038 ~1989
25322663506453278 ~1989
25323131506462638 ~1989
25324223506484478 ~1989
25324451506489038 ~1989
25324811506496238 ~1989
25324991506499838 ~1989
25325411506508238 ~1989
25325483506509678 ~1989
25325711506514238 ~1989
25325819506516398 ~1989
25326683506533678 ~1989
25327283506545678 ~1989
25328399506567998 ~1989
253290114559221999 ~1991
253290672532906719 ~1991
25329599506591998 ~1989
25329659506593198 ~1989
25329971506599438 ~1989
253300095572601999 ~1991
25330583506611678 ~1989
Exponent Prime Factor Digits Year
25330631506612638 ~1989
25331651506633038 ~1989
25331879506637598 ~1989
253322478612963999 ~1992
25333103506662078 ~1989
25333151506663038 ~1989
25334591506691838 ~1989
25334663506693278 ~1989
253348396080361379 ~1991
25335059506701198 ~1989
25335119506702398 ~1989
25335311506706238 ~1989
25335503506710078 ~1989
25335539506710798 ~1989
25335743506714878 ~1989
253358811520152879 ~1990
25336463506729278 ~1989
25336523506730478 ~1989
25336991506739838 ~1989
253370636587636399 ~1992
25337171506743438 ~1989
25337219506744398 ~1989
25338011506760238 ~1989
25338179506763598 ~1989
25338623506772478 ~1989
Exponent Prime Factor Digits Year
25339091506781838 ~1989
25339871506797438 ~1989
25340039506800798 ~1989
25340279506805598 ~1989
25342043506840878 ~1989
25342111182463199310 ~1993
25342139506842798 ~1989
25342327101369308110 ~1992
25342379506847598 ~1989
25342991506859838 ~1989
253432331520593999 ~1990
25343471506869438 ~1989
25344131506882638 ~1989
25344491121653556910 ~1992
25344563506891278 ~1989
25344719506894398 ~1989
25344743506894878 ~1989
25344779506895598 ~1989
253451572027612579 ~1990
25346423506928478 ~1989
253474372027794979 ~1990
25347911506958238 ~1989
253480916590503679 ~1992
25348643506972878 ~1989
25348703506974078 ~1989
1584
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25-04-13