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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
25845731516914638 ~1989
25845779516915598 ~1989
25845959516919198 ~1989
25846211516924238 ~1989
25846763516935278 ~1989
25847639516952798 ~1989
25848299516965998 ~1989
25848419516968398 ~1989
25848503516970078 ~1989
25848659516973198 ~1989
25848923516978478 ~1989
258496611550979679 ~1990
258502217755066319 ~1992
25850351517007038 ~1989
25850483517009678 ~1989
25850843517016878 ~1989
25851323517026478 ~1989
25852523517050478 ~1989
25852763517055278 ~1989
25852811517056238 ~1989
25853099517061998 ~1989
25853603517072078 ~1989
258540074136641139 ~1991
258542931551257599 ~1990
25854431517088638 ~1989
Exponent Prime Factor Digits Year
25854551517091038 ~1989
25854683517093678 ~1989
25855171868733745710 ~1994
25855331517106638 ~1989
25855799517115998 ~1989
25855877248216419310 ~1993
25855919517118398 ~1989
258561116722588879 ~1992
25856339517126798 ~1989
258564196205540579 ~1992
25856783517135678 ~1989
25857563517151278 ~1989
258579773620116799 ~1991
25858103517162078 ~1989
25858379517167598 ~1989
25858403517168078 ~1989
258589072068712579 ~1990
25859243517184878 ~1989
258593812068750499 ~1990
258594137757823919 ~1992
258594594654702639 ~1991
25859591517191838 ~1989
25860203517204078 ~1989
25860839517216798 ~1989
258610192068881539 ~1990
Exponent Prime Factor Digits Year
25861271517225438 ~1989
25861691517233838 ~1989
25862279517245598 ~1989
25862351517247038 ~1989
25862411517248238 ~1989
25863011517260238 ~1989
25863263517265278 ~1989
25863479517269598 ~1989
25863899517277998 ~1989
25864931517298638 ~1989
25865951517319038 ~1989
25866143517322878 ~1989
258662712586627119 ~1991
25866383517327678 ~1989
258664371551986239 ~1990
25866983517339678 ~1989
25867031517340638 ~1989
25867139517342798 ~1989
25867631517352638 ~1989
258680415690969039 ~1991
25868723517374478 ~1989
25868987144866327310 ~1992
258691674656450079 ~1991
25869323517386478 ~1989
25869731517394638 ~1989
Exponent Prime Factor Digits Year
25869743517394878 ~1989
25869923517398478 ~1989
25870589269054125710 ~1993
25871243517424878 ~1989
25871759517435198 ~1989
25871771517435438 ~1989
25871819517436398 ~1989
25871999517439998 ~1989
25872443517448878 ~1989
25872859108666007910 ~1992
25872911517458238 ~1989
25873163517463278 ~1989
25874039517480798 ~1989
25874099517481998 ~1989
258744771552468639 ~1990
25874591517491838 ~1989
258749931552499599 ~1990
25875611517512238 ~1989
258763695692801199 ~1991
25876463517529278 ~1989
25876919517538398 ~1989
25877123517542478 ~1989
258782872070262979 ~1990
258783192587831919 ~1991
258788571552731439 ~1990
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25-04-13