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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
18383591367671838 ~1988
183835971470687779 ~1989
18384059367681198 ~1988
18384221176488521710 ~1992
183844131103064799 ~1989
183844272941508339 ~1990
18384563367691278 ~1988
183853511838535119 ~1989
183858471470867779 ~1989
18386051367721038 ~1988
183863091470904739 ~1989
18386339367726798 ~1988
183864834780485599 ~1990
183865276251419199 ~1991
183867171103203039 ~1989
183868011103208079 ~1989
18387023367740478 ~1988
18387431367748638 ~1988
18387923367758478 ~1988
18387983367759678 ~1988
183885011103310079 ~1989
183885299929805679 ~1991
18388631367772638 ~1988
183891014045602239 ~1990
18389183367783678 ~1988
Exponent Prime Factor Digits Year
18389303367786078 ~1988
18389531367790638 ~1988
18389879367797598 ~1988
18390539367810798 ~1988
18390551367811038 ~1988
18390563367811278 ~1988
183908774413810499 ~1990
183917771103506639 ~1989
18391811367836238 ~1988
18391991367839838 ~1988
18393131367862638 ~1988
18393359367867198 ~1988
18394703367894078 ~1988
18395579367911598 ~1988
18395879367917598 ~1988
18396071367921438 ~1988
18396083367921678 ~1988
183960971103765839 ~1989
183966912943470579 ~1990
183970811103824879 ~1989
183973632943578099 ~1990
18397583367951678 ~1988
18397811367956238 ~1988
183981291471850339 ~1989
183981671839816719 ~1989
Exponent Prime Factor Digits Year
183982011103892079 ~1989
183987193311769439 ~1990
18399443367988878 ~1988
18399791367995838 ~1988
183999191839991919 ~1989
184000036256001039 ~1991
18400139368002798 ~1988
18400163368003278 ~1988
18400439368008798 ~1988
184005979936322399 ~1991
18400691368013838 ~1988
184009814048215839 ~1990
184010571104063439 ~1989
184012971104077839 ~1989
18401423368028478 ~1988
18401843368036878 ~1988
18402359136177456710 ~1992
18402479368049598 ~1988
184029313312527599 ~1990
18403439368068798 ~1988
18403823368076478 ~1988
18403943368078878 ~1988
184041611104249679 ~1989
18404231368084638 ~1988
184047534417140739 ~1990
Exponent Prime Factor Digits Year
184047971104287839 ~1989
18405479368109598 ~1988
184055871472446979 ~1989
18405671368113438 ~1988
18405683368113678 ~1988
18405839368116798 ~1988
184059771104358639 ~1989
18406103368122078 ~1988
18406331368126638 ~1988
184064771104388639 ~1989
184068411472547299 ~1989
18406931368138638 ~1988
18407771368155438 ~1988
18407783368155678 ~1988
18408023368160478 ~1988
184080532577127439 ~1990
184096311472770499 ~1989
18410531368210638 ~1988
184107311841073119 ~1989
184110593313990639 ~1990
184118571104711439 ~1989
18412151368243038 ~1988
184122371104734239 ~1989
184123271841232719 ~1989
18412763368255278 ~1988
1357
GIMPS The Prime Pages FactorDb.com
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25-04-13