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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
248642211491853279 ~1990
24865103497302078 ~1989
24865391497307838 ~1989
24865583497311678 ~1989
248656971989255779 ~1990
24865943497318878 ~1989
24866531497330638 ~1989
24866591497331838 ~1989
24867263497345278 ~1989
248673971492043839 ~1990
24868139497362798 ~1989
248681573481541999 ~1991
248681871989454979 ~1990
24868583497371678 ~1989
24869363497387278 ~1989
248696531492179199 ~1990
248697011492182079 ~1990
24870119497402398 ~1989
24870143497402878 ~1989
248703531492221199 ~1990
248708232487082319 ~1990
24871043497420878 ~1989
24871403497428078 ~1989
24871991497439838 ~1989
248725992487259919 ~1990
Exponent Prime Factor Digits Year
24872663497453278 ~1989
248727072487270719 ~1990
24873239497464798 ~1989
24873263497465278 ~1989
248732833979725299 ~1991
248733236467063999 ~1991
24873659497473198 ~1989
24873791497475838 ~1989
24874691497493838 ~1989
24875219497504398 ~1989
248755311990042499 ~1990
248755371990042979 ~1990
24875771497515438 ~1989
248772611492635679 ~1990
24877799497555998 ~1989
24877883497557678 ~1989
24877943497558878 ~1989
24878159497563198 ~1989
24878459497569198 ~1989
248787735970905539 ~1991
248796011492776079 ~1990
24880151497603038 ~1989
248806076468957839 ~1991
248816112488161119 ~1990
24881771497635438 ~1989
Exponent Prime Factor Digits Year
248820173483482399 ~1991
248821735971721539 ~1991
24882443497648878 ~1989
248825411492952479 ~1990
248827211492963279 ~1990
24882839497656798 ~1989
24883403497668078 ~1989
248836977465109119 ~1992
24884819497696398 ~1989
24885083497701678 ~1989
248853615474779439 ~1991
24885803497716078 ~1989
24885851497717038 ~1989
24886919497738398 ~1989
248869211493215279 ~1990
248870211493221279 ~1990
248872272488722719 ~1990
24887231497744638 ~1989
24887279497745598 ~1989
248874073981985139 ~1991
24887519497750398 ~1989
248878337466349919 ~1992
24887903497758078 ~1989
24888203497764078 ~1989
24888491497769838 ~1989
Exponent Prime Factor Digits Year
24888683497773678 ~1989
24889391497787838 ~1989
248894411493366479 ~1990
24889499497789998 ~1989
248894991991159939
24889619497792398 ~1989
24889919497798398 ~1989
24890291497805838 ~1989
24890819497816398 ~1989
24890891497817838 ~1989
24890951497819038 ~1989
24891143497822878 ~1989
24891239497824798 ~1989
24891299497825998 ~1989
24891563497831278 ~1989
24891959497839198 ~1989
248920575974093699 ~1991
24892079497841598 ~1989
24892691497853838 ~1989
24892943497858878 ~1989
24893399497867998 ~1989
2489346712033501947912 ~1997
24894263497885278 ~1989
24895163497903278 ~1989
248953973485355599 ~1991
1629
GIMPS The Prime Pages FactorDb.com
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25-11-02