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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
203113311624906499 ~1990
20311559406231198 ~1988
20311859406237198 ~1988
203119032031190319 ~1990
20311979406239598 ~1988
203120571624964579 ~1990
203121912031219119 ~1990
20312219406244398 ~1988
203125611625004899 ~1990
20312639406252798 ~1988
20312819406256398 ~1988
203137791625102339 ~1990
20314043406280878 ~1988
20314523406290478 ~1988
20315699406313998 ~1988
20315783406315678 ~1988
20316083406321678 ~1988
20316539406330798 ~1988
20317799406355998 ~1988
20318003406360078 ~1988
20318471406369438 ~1988
20318843406376878 ~1988
20318891406377838 ~1988
203193171219159039 ~1989
20319371406387438 ~1988
Exponent Prime Factor Digits Year
20319503406390078 ~1988
20319599406391998 ~1988
203203611625628899 ~1990
20320439406408798 ~1988
20321159406423198 ~1988
20321303406426078 ~1988
203213391625707139 ~1990
203218791625750339 ~1990
203227513251640179 ~1990
20322983406459678 ~1988
20323031406460638 ~1988
20323379406467598 ~1988
20323871406477438 ~1988
203241411625931299 ~1990
20324159406483198 ~1988
20324723406494478 ~1988
20325083406501678 ~1988
20325743406514878 ~1988
20326499406529998 ~1988
20326643406532878 ~1988
20327039406540798 ~1988
20328911406578238 ~1988
20329139406582798 ~1988
20329559345602503110 ~1993
203296491626371939 ~1990
Exponent Prime Factor Digits Year
20329979406599598 ~1988
20330339406606798 ~1988
203304111626432899 ~1990
20330543406610878 ~1988
20330819406616398 ~1988
20330951406619038 ~1988
20331323406626478 ~1988
20331743406634878 ~1988
20332283406645678 ~1988
20332439406648798 ~1988
20332583406651678 ~1988
20332919406658398 ~1988
20332979406659598 ~1988
203329813253276979 ~1990
20333699406673998 ~1988
20335223406704478 ~1988
203352771220116639 ~1989
20335379406707598 ~1988
203356971626855779 ~1990
203359371220156239 ~1989
20336399406727998 ~1988
20336843406736878 ~1988
203371998541623599 ~1991
203373373253973939 ~1990
20337371406747438 ~1988
Exponent Prime Factor Digits Year
20337563406751278 ~1988
20337959406759198 ~1988
20338943406778878 ~1988
203391971220351839 ~1989
20339339406786798 ~1988
203393571220361439 ~1989
203395971627167779 ~1990
203396097729051439 ~1991
20340251406805038 ~1988
20340863406817278 ~1988
20341273288846076710 ~1993
203414811220488879 ~1989
20341991406839838 ~1988
20342243406844878 ~1988
20342303406846078 ~1988
20342351406847038 ~1988
20343371406867438 ~1988
203438331220629999 ~1989
20344211406884238 ~1988
203442731220656399 ~1989
20344319406886398 ~1988
203445174882684099 ~1991
20344619406892398 ~1988
20344823406896478 ~1988
20345483406909678 ~1988
1424
GIMPS The Prime Pages FactorDb.com
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25-04-13