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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
121847592193256639 ~1989
12184961974796898 ~1988
121851891705926479 ~1988
121853512193363199 ~1989
12185399243707998 ~1986
121854191218541919 ~1988
12185497731129838 ~1987
12185639243712798 ~1986
12186001731160078 ~1987
12186719243734398 ~1986
12186737974938978 ~1988
12186851243737038 ~1986
121868993899807699 ~1989
121869071218690719 ~1988
12187271243745438 ~1986
12187463243749278 ~1986
12187811243756238 ~1986
121883471218834719 ~1988
12188483243769678 ~1986
12188699975095938 ~1988
12188999975119938 ~1988
12189179243783598 ~1986
12189371243787438 ~1986
12189553731373198 ~1987
12189623243792478 ~1986
Exponent Prime Factor Digits Year
121897572925541699 ~1989
12189923243798478 ~1986
12190019975201538 ~1988
121901478045497039 ~1990
12190151243803038 ~1986
121903631219036319 ~1988
12190517975241378 ~1988
12190681731440878 ~1987
12190847975267778 ~1988
12191051243821038 ~1986
12191171243823438 ~1986
12191279243825598 ~1986
12191279975302338
12191423243828478 ~1986
12191831243836638 ~1986
12192359243847198 ~1986
12192611243852238 ~1986
121926438778702979 ~1990
121928337559556479 ~1990
12192857731571438 ~1987
12192923243858478 ~1986
12192959243859198 ~1986
12193081731584878 ~1987
12193451243869038 ~1986
12193661731619678 ~1987
Exponent Prime Factor Digits Year
12193823243876478 ~1986
12193931243878638 ~1986
12194183243883678 ~1986
12194411243888238 ~1986
12194939243898798 ~1986
121950771707310799 ~1988
12195301731718078 ~1987
121953615609866079 ~1990
12195719243914398 ~1986
12195779243915598 ~1986
12196031243920638 ~1986
12196637731798238 ~1987
121969493659084719 ~1989
12197051243941038 ~1986
12197231243944638 ~1986
12197519243950398 ~1986
121978511219785119 ~1988
12197903243958078 ~1986
12198083243961678 ~1986
12198371975869698 ~1988
12198479243969598 ~1986
12198509156140915310 ~1991
12198569975885538 ~1988
121986911219869119 ~1988
12199097117111331310 ~1990
Exponent Prime Factor Digits Year
12199199243983998 ~1986
121993514879740419 ~1990
12199403243988078 ~1986
121994571707923999 ~1988
12200291244005838 ~1986
12200399244007998 ~1986
122007791220077919 ~1988
12200843244016878 ~1986
12201131244022638 ~1986
12201191244023838 ~1986
12201193732071598 ~1987
12201353732081198 ~1987
12201719244034398 ~1986
122024711952395379 ~1989
12202691244053838 ~1986
12203003244060078 ~1986
12203183244063678 ~1986
12203651244073038 ~1986
12203699244073998 ~1986
12203759244075198 ~1986
12204323244086478 ~1986
12204551244091038 ~1986
122045832929099939 ~1989
12204611244092238 ~1986
12204851244097038 ~1986
1127
GIMPS The Prime Pages FactorDb.com
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25-06-01