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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
406208212437249279 ~1992
406210332437261999 ~1992
40621043812420878 ~1990
40621859812437198 ~1990
40622363812447278 ~1990
40623371812467438 ~1990
40624019812480398 ~1990
40624439812488798 ~1990
406247693249981539 ~1992
40627283812545678 ~1990
40627523812550478 ~1990
406282673250261379 ~1992
40628723812574478 ~1990
40629059812581198 ~1990
40630871812617438 ~1990
40630883812617678 ~1990
406318812437912879 ~1992
40632491812649838 ~1990
406330373250642979 ~1992
40633391487600692110 ~1995
40634579812691598 ~1990
406354793250838339 ~1992
40635599812711998 ~1990
40635911812718238 ~1990
40635923812718478 ~1990
Exponent Prime Factor Digits Year
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
406453877316169679 ~1993
406469812438818879 ~1992
40647311812946238 ~1990
40647329739781387910 ~1995
40649243812984878 ~1990
40651043813020878 ~1990
40653923813078478 ~1990
40653971813079438 ~1990
40655819813116398 ~1990
406561699757480579 ~1993
40658063813161278 ~1990
406586212439517279 ~1992
Exponent Prime Factor Digits Year
40659623813192478 ~1990
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
406683074066830719 ~1992
40668503813370078 ~1990
40670351813407038 ~1990
40670471813409438 ~1990
40670951813419038 ~1990
406716713253733699 ~1992
40672223813444478 ~1990
40672631813452638 ~1990
406739573253916579 ~1992
40674311813486238 ~1990
40674503813490078 ~1990
Exponent Prime Factor Digits Year
40676773292872765710 ~1994
40677059170843647910 ~1994
40678019813560398 ~1990
40678499813569998 ~1990
406792013254336099 ~1992
40679459813589198 ~1990
40682399813647998 ~1990
40683971813679438 ~1990
40685759813715198 ~1990
406862212441173279 ~1992
40688099813761998 ~1990
406894013255152099 ~1992
40690211813804238 ~1990
406916332441497999 ~1992
40691831813836638 ~1990
406928932441573599 ~1992
40693043813860878 ~1990
40693619813872398 ~1990
406940212441641279 ~1992
406940213255521699
40694123813882478 ~1990
40695251813905038 ~1990
40695727138365471910 ~1993
40695731813914638 ~1990
40695779813915598 ~1990
1962
GIMPS The Prime Pages FactorDb.com
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25-07-08