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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
515853714126829699 ~1993
515855631031711279 ~1991
515861631031723279 ~1991
515863191031726399 ~1991
515867274126938179 ~1993
515867391031734799 ~1991
515873697222231679 ~1993
515879595158795919 ~1993
515886231031772479 ~1991
515900391031800799 ~1991
515901831031803679 ~1991
515920275159202719 ~1993
515928111031856239 ~1991
515944497223222879 ~1993
515959333095755999 ~1992
515981031031962079 ~1991
515997591031995199 ~1991
516044391032088799 ~1991
516048533096291199 ~1992
516063078257009139 ~1993
516063111032126239 ~1991
516094191032188399 ~1991
516098391032196799 ~1991
516113631032227279 ~1991
51611531134189980710 ~1994
Exponent Prime Factor Digits Year
516126111032252239 ~1991
516131511032263039 ~1991
516137031032274079 ~1991
516138294129106339 ~1993
51614161113551154310 ~1994
516143511032287039 ~1991
516152991032305999 ~1991
516156591032313199 ~1991
516157791032315599 ~1991
516190311032380639 ~1991
516214311032428639 ~1991
516227991032455999 ~1991
516229791032459599 ~1991
516235973097415839 ~1992
516237773097426639 ~1992
516248933097493599 ~1992
516251399292525039 ~1994
516283191032566399 ~1991
516289311032578639 ~1991
516293391032586799 ~1991
51629399629878667910 ~1996
516309795163097919 ~1993
516320413097922479 ~1992
516325791032651599 ~1991
516327831032655679 ~1991
Exponent Prime Factor Digits Year
516328311032656639 ~1991
51633649526663219910 ~1995
516338214130705699 ~1993
516344631032689279 ~1991
516363373098180239 ~1992
516387111032774239 ~1991
516390231032780479 ~1991
516395511032791039 ~1991
516400311032800639 ~1991
516414831032829679 ~1991
516424431032848879 ~1991
516435831032871679 ~1991
516441111032882239 ~1991
516448515164485119 ~1993
516452631032905279 ~1991
516471594131772739 ~1993
516473631032947279 ~1991
516485631032971279 ~1991
516486711032973439 ~1991
516493133098958799 ~1992
516495111032990239 ~1991
516507711033015439 ~1991
516515991033031999 ~1991
516524391033048799 ~1991
516530511033061039 ~1991
Exponent Prime Factor Digits Year
516536631033073279 ~1991
51653773113638300710 ~1994
516542991033085999 ~1991
516543711033087439 ~1991
516546711033093439 ~1991
516554031033108079 ~1991
516559911033119839 ~1991
516566173099397039 ~1992
51657779258288895110 ~1995
516587031033174079 ~1991
516595191033190399 ~1991
516602991033205999 ~1991
516603591033207199 ~1991
516605173099631039 ~1992
516608115166081119 ~1993
516622911033245839 ~1991
516626719299280799 ~1994
516631911033263839 ~1991
516631913564760179111
516670791033341599 ~1991
516674574133396579 ~1993
516675719300162799 ~1994
516676131984036339311 ~1997
516676911033353839 ~1991
516683391033366799 ~1991
2085
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25-06-08