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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
40596551811931038 ~1990
40598219811964398 ~1990
405992279743814499 ~1993
40599239811984798 ~1990
40599803811996078 ~1990
406007332436043999 ~1992
40600799812015998 ~1990
40601579812031598 ~1990
40602491812049838 ~1990
40603331812066638 ~1990
406046597308838639 ~1993
40606883812137678 ~1990
40607291812145838 ~1990
40607471812149438 ~1990
40608959812179198 ~1990
40609043812180878 ~1990
406090572436543439 ~1992
40610159812203198 ~1990
40610351812207038 ~1990
40610579812211598 ~1990
406106212436637279 ~1992
406110172436661039 ~1992
40611937389874595310 ~1995
40613519812270398 ~1990
40613819812276398 ~1990
Exponent Prime Factor Digits Year
40614083812281678 ~1990
40614503812290078 ~1990
40614551812291038 ~1990
40615271812305438 ~1990
406153612436921679 ~1992
406154093249232739 ~1992
40616063812321278 ~1990
40617491812349838 ~1990
40618031812360638 ~1990
40618271812365438 ~1990
406184335686580639 ~1992
40619651812393038 ~1990
406202695686837679 ~1992
406204073249632579 ~1992
406208212437249279 ~1992
406210332437261999 ~1992
40621043812420878 ~1990
40621859812437198 ~1990
40623371812467438 ~1990
40624019812480398 ~1990
40624439812488798 ~1990
406247693249981539 ~1992
40627283812545678 ~1990
40627523812550478 ~1990
406282673250261379 ~1992
Exponent Prime Factor Digits Year
40628723812574478 ~1990
40629059812581198 ~1990
40630871812617438 ~1990
40630883812617678 ~1990
406318812437912879 ~1992
40632491812649838 ~1990
406330373250642979 ~1992
40634579812691598 ~1990
406354793250838339 ~1992
40635599812711998 ~1990
40635911812718238 ~1990
40635923812718478 ~1990
406371532438229199 ~1992
40638791812775838 ~1990
40639559812791198 ~1990
40639691812793838 ~1990
40639883812797678 ~1990
40640051812801038 ~1990
40641371812827438 ~1990
406417216502675379 ~1993
40643411812868238 ~1990
40643639812872798 ~1990
40644371812887438 ~1990
40645103812902078 ~1990
40645343812906878 ~1990
Exponent Prime Factor Digits Year
406453877316169679 ~1993
406469812438818879 ~1992
40647311812946238 ~1990
40647329739781387910 ~1995
40649243812984878 ~1990
40651043813020878 ~1990
40653923813078478 ~1990
40653971813079438 ~1990
40655819813116398 ~1990
406561699757480579 ~1993
40658063813161278 ~1990
406586212439517279 ~1992
40659803813196078 ~1990
40659959813199198 ~1990
406601834066018319 ~1992
40660211813204238 ~1990
40661051813221038 ~1990
406619834066198319 ~1992
40662659813253198 ~1990
406629914066299119 ~1992
40663751813275038 ~1990
406645572439873439 ~1992
406657973253263779 ~1992
40666799813335998 ~1990
40667093227735720910 ~1994
1915
GIMPS The Prime Pages FactorDb.com
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25-04-13