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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
644092271128818454310 ~2000
644125259128825051910 ~2000
644139959128827991910 ~2000
644151251128830250310 ~2000
644153063128830612710 ~2000
644173823128834764710 ~2000
644177879128835575910 ~2000
644197283128839456710 ~2000
644234351128846870310 ~2000
644236031128847206310 ~2000
644238839128847767910 ~2000
6442418831546180519311 ~2002
644243531128848706310 ~2000
644250287515400229710 ~2001
644313539128862707910 ~2000
6443238471159782924711 ~2002
644334463644334463110 ~2002
644334623128866924710 ~2000
644358359128871671910 ~2000
644368121386620872710 ~2001
644384891515507912910 ~2001
644385803128877160710 ~2000
644421181386652708710 ~2001
644423639128884727910 ~2000
644454383128890876710 ~2000
Exponent Prime Factor Digits Year
644463361386678016710 ~2001
644485619128897123910 ~2000
644507183128901436710 ~2000
644512703128902540710 ~2000
644518403128903680710 ~2000
644529911128905982310 ~2000
644531963128906392710 ~2000
644548097386728858310 ~2001
644571971128914394310 ~2000
6445759731933727919111 ~2003
644580847644580847110 ~2002
644593583128918716710 ~2000
644606057386763634310 ~2001
64463097716502553011312 ~2005
6446434371547144248911 ~2002
644647043128929408710 ~2000
644647103128929420710 ~2000
644670023128934004710 ~2000
644684351515747480910 ~2001
644685479128937095910 ~2000
644717207515773765710 ~2001
644719499128943899910 ~2000
644749499128949899910 ~2000
644765879128953175910 ~2000
644786699128957339910 ~2000
Exponent Prime Factor Digits Year
644793251128958650310 ~2000
6448213274126856492911 ~2004
644823911128964782310 ~2000
644861579128972315910 ~2000
644866679128973335910 ~2000
644876951128975390310 ~2000
644880143128976028710 ~2000
644883419128976683910 ~2000
644888663128977732710 ~2000
644899061386939436710 ~2001
644905091128981018310 ~2000
644918903128983780710 ~2000
6449219936578204328711 ~2004
644938507644938507110 ~2002
644943631644943631110 ~2002
644948119644948119110 ~2002
644950283128990056710 ~2000
644956373386973823910 ~2001
644956391128991278310 ~2000
6449658611031945377711 ~2002
645006683129001336710 ~2000
645055049516044039310 ~2001
645070379129014075910 ~2000
645082283129016456710 ~2000
645110387516088309710 ~2001
Exponent Prime Factor Digits Year
645112541387067524710 ~2001
645144961387086976710 ~2001
645150137387090082310 ~2001
6451647591548395421711 ~2002
645175547516140437710 ~2001
645207259645207259110 ~2002
645212591129042518310 ~2000
645233591129046718310 ~2000
645278519129055703910 ~2000
6452885714258904568711 ~2004
645329081387197448710 ~2001
645330443129066088710 ~2000
645338231129067646310 ~2000
645397217387238330310 ~2001
6454288994130744953711 ~2004
645444911129088982310 ~2000
645446519129089303910 ~2000
645470879129094175910 ~2000
645509519129101903910 ~2000
645558983129111796710 ~2000
645571919129114383910 ~2000
645590831129118166310 ~2000
645596351129119270310 ~2000
645598223129119644710 ~2000
645627791129125558310 ~2000
3667
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26-03-15