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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
3954976317909952639 ~1998
395498309316398647310 ~2000
395503187316402549710 ~2000
3955059172214833135311 ~2002
395517511395517511110 ~2000
3955257597910515199 ~1998
3955296717910593439 ~1998
3955340637910681279 ~1998
395535403395535403110 ~2000
3955367637910735279 ~1998
3955370637910741279 ~1998
3955425837910851679 ~1998
3955437837910875679 ~1998
3955485411265755331311 ~2001
3955617237911234479 ~1998
395592221316473776910 ~2000
3956030517912061039 ~1998
3956077917912155839 ~1998
3956079837912159679 ~1998
3956149917912299839 ~1998
3956186511661598334311 ~2001
3956234517912469039 ~1998
395631617237378970310 ~1999
395635649316508519310 ~2000
395652953237391771910 ~1999
Exponent Prime Factor Digits Year
3956580837913161679 ~1998
395660267316528213710 ~2000
3956603397913206799 ~1998
3956776197913552399 ~1998
395679107316543285710 ~2000
3956801997913603999 ~1998
3956895837913791679 ~1998
395691479316553183310 ~2000
3956975517913951039 ~1998
3957265317914530639 ~1998
3957568317915136639 ~1998
3957571797915143599 ~1998
395763437237458062310 ~1999
395765113633224180910 ~2000
395765791395765791110 ~2000
395796607712433892710 ~2000
3957970197915940399 ~1998
3958014771504045612711 ~2001
395810417316648333710 ~2000
3958154892137403640711 ~2002
3958291511899979924911 ~2002
3958311717916623439 ~1998
395833421237500052710 ~1999
3958345917916691839 ~1998
3958434117916868239 ~1998
Exponent Prime Factor Digits Year
3958730397917460799 ~1998
3958795917917591839 ~1998
395887573237532543910 ~1999
395888173237532903910 ~1999
3958943637917887279 ~1998
3959053197918106399 ~1998
3959171637918343279 ~1998
3959181237918362479 ~1998
3959182917918365839 ~1998
3959482197918964399 ~1998
3959629437919258879 ~1998
395966161237579696710 ~1999
3959794917919589839 ~1998
3960013797920027599 ~1998
396016801237610080710 ~1999
3960297237920594479 ~1998
396039121237623472710 ~1999
3960411837920823679 ~1998
3960587397921174799 ~1998
3960797994832173547911 ~2003
3960855597921711199 ~1998
3960987237921974479 ~1998
3961024917922049839 ~1998
3961038717922077439 ~1998
3961057917922115839 ~1998
Exponent Prime Factor Digits Year
3961281717922563439 ~1998
396128861237677316710 ~1999
3961328397922656799 ~1998
396142259316913807310 ~2000
3961502997923005999 ~1998
396161657237696994310 ~1999
396164051316931240910 ~2000
396168907713104032710 ~2000
396176069554646496710 ~2000
3961930797923861599 ~1998
3962171037924342079 ~1998
3962207332218836104911 ~2002
3962224797924449599 ~1998
3962268237924536479 ~1998
396248917950997400910 ~2001
396279413237767647910 ~1999
3962875437925750879 ~1998
396314057237788434310 ~1999
3963168837926337679 ~1998
396351401237810840710 ~1999
3963582717927165439 ~1998
3963647397927294799 ~1998
3963647517927295039 ~1998
3963759717927519439 ~1998
396380027317104021710 ~2000
3068
GIMPS The Prime Pages FactorDb.com
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25-04-13