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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
215705598628223619 ~1991
21570623431412478 ~1988
21570863431417278 ~1988
21572231431444638 ~1988
21572279431445598 ~1988
21572891431457838 ~1988
21573203431464078 ~1988
215732698197842239 ~1991
215736531294419199 ~1989
21573791431475838 ~1988
21573971431479438 ~1988
21573983431479678 ~1988
21574211431484238 ~1988
215744171294465039 ~1989
21574499431489998 ~1988
215746131294476799 ~1989
21574859431497198 ~1988
21574991431499838 ~1988
21575591431511838 ~1988
21576251431525038 ~1988
21576539431530798 ~1988
215767814746891839 ~1991
21576851431537038 ~1988
215769531294617199 ~1989
215771171294627039 ~1989
Exponent Prime Factor Digits Year
21577859431557198 ~1988
21578783431575678 ~1988
21579479431589598 ~1988
21579671431593438 ~1988
215796711726373699
21579731431594638 ~1988
215800371726402979 ~1990
21580283431605678 ~1988
215810295179446979 ~1991
21581603431632078 ~1988
215816035611216799
215817411294904479 ~1989
21581951431639038 ~1988
21582131431642638 ~1988
21582551431651038 ~1988
21582779431655598 ~1988
215828331294969999 ~1989
21583379431667598 ~1988
21583643431672878 ~1988
21583811431676238 ~1988
21583883431677678 ~1988
215845931295075599 ~1989
21584723431694478 ~1988
21584999431699998 ~1988
21585611431712238 ~1988
Exponent Prime Factor Digits Year
21585743431714878 ~1988
21586079431721598 ~1988
21586661185645284710 ~1992
21587183431743678 ~1988
21587963431759278 ~1988
21588023431760478 ~1988
215883771295302639 ~1989
21588551431771038 ~1988
215891533454264499 ~1990
215894871727158979 ~1990
21590039431800798 ~1988
21590183431803678 ~1988
21590339431806798 ~1988
215907494749964799 ~1991
21590879431817598 ~1988
21591539431830798 ~1988
21591761185689144710 ~1992
21591959431839198 ~1988
21592163431843278 ~1988
21592463431849278 ~1988
21592943431858878 ~1988
215938334750643279 ~1991
21593879431877598 ~1988
215940716910102739 ~1991
215941371295648239 ~1989
Exponent Prime Factor Digits Year
21594179431883598 ~1988
21594311431886238 ~1988
215944491727555939 ~1990
21594731431894638 ~1988
21594983431899678 ~1988
21595103431902078 ~1988
215951639069968479 ~1992
21595439431908798 ~1988
215957411295744479 ~1989
21595859431917198 ~1988
21596219431924398 ~1988
21596423431928478 ~1988
21596819431936398 ~1988
215973775183370499 ~1991
21597971470835767910 ~1993
21598091431961838 ~1988
21598463431969278 ~1988
21598523431970478 ~1988
215989011295934079 ~1989
21599183431983678 ~1988
21599951431999038 ~1988
216003611296021679 ~1989
21600479432009598 ~1988
216009073456145139 ~1990
216013971296083839 ~1989
1522
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25-11-02