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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
247103411482620479 ~1990
247111392471113919 ~1990
24712043494240878 ~1989
24712403494248078 ~1989
247125171977001379 ~1990
247129731482778399 ~1990
24713219494264398 ~1989
247138392471383919 ~1990
247139571482837439 ~1990
24714071494281438 ~1989
247140717908502739
247142991977143939 ~1990
24714479494289598 ~1989
24715139494302798 ~1989
247153071977224579 ~1990
24715643494312878 ~1989
24715871494317438 ~1989
24716171494323438 ~1989
24716459494329198 ~1989
247169571102376282311 ~1994
24717659494353198 ~1989
24717971494359438 ~1989
24718091494361838 ~1989
24718139494362798 ~1989
24718283494365678 ~1989
Exponent Prime Factor Digits Year
24718559494371198 ~1989
24718691494373838 ~1989
24718763494375278 ~1989
247188792471887919 ~1990
24719099494381998 ~1989
247195331483171999 ~1990
247197773460768799 ~1991
247200131483200799 ~1990
24720071494401438 ~1989
24720623494412478 ~1989
247207971483247839 ~1990
247209011483254079 ~1990
24721019494420398 ~1989
24721139494422798 ~1989
24721379494427598 ~1989
24721583494431678 ~1989
247218471977747779 ~1990
24721943494438878 ~1989
247221013955536179 ~1991
247227411977819299 ~1990
24722843494456878 ~1989
247231699889267619 ~1992
24723299494465998 ~1989
24723823296685876110 ~1993
24723851494477038 ~1989
Exponent Prime Factor Digits Year
24723983494479678 ~1989
24724079494481598 ~1989
24724319494486398 ~1989
24724523494490478 ~1989
24724571494491438 ~1989
247246571483479439 ~1990
24724751494495038 ~1989
24725411494508238 ~1989
24725663494513278 ~1989
24725999494519998 ~1989
247262036428812799 ~1991
24726431494528638 ~1989
24726599494531998 ~1989
24726743494534878 ~1989
247268511978148099 ~1990
247273571483641439 ~1990
24727583494551678 ~1989
24727751494555038 ~1989
247282373461953199 ~1991
247283175934796099 ~1991
24728351494567038 ~1989
247288811483732879 ~1990
24729179494583598 ~1989
24729863494597278 ~1989
24730943494618878 ~1989
Exponent Prime Factor Digits Year
24731351494627038 ~1989
24732359494647198 ~1989
247324017419720319 ~1992
24732443494648878 ~1989
247326291978610339 ~1990
24732731494654638 ~1989
24732839494656798 ~1989
24732899494657998 ~1989
247329731483978399 ~1990
24733343494666878 ~1989
24733811494676238 ~1989
247339497914863699 ~1992
24734639494692798 ~1989
24734771494695438 ~1989
24735251494705038 ~1989
247353771484122639 ~1990
24735563494711278 ~1989
24735839494716798 ~1989
247358712473587119 ~1990
24736823494736478 ~1989
247376835937043939 ~1991
24737759494755198 ~1989
24737963494759278 ~1989
24738011494760238 ~1989
24738431494768638 ~1989
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25-07-08