Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
118343207Factored
FactorDigitsBitsDate
5152575610022531139369612478.82023-07-14 00:46:08
P-1 factors
DateFactorB1B2
2023-07-145152575610022531139369615500009762500
History
DateUserTypeResult
2023-07-14Sergey NosovF-PM1
Factor: 515257561002253113936961 / (P-1, B1=550000, B2=9762500, E=12)
2022-10-31Brent GoebelNF
no factor from 2^77 to 2^78
2021-11-26voidfNF
no factor from 2^76 to 2^77
2021-07-04TheJudgerNF
no factor from 2^75 to 2^76
2021-07-04TheJudgerNF
no factor from 2^74 to 2^75
2019-07-26Niels_Mache_NextcloudNF
no factor from 2^73 to 2^74
2016-08-30snme2pm1NF
no factor from 2^72 to 2^73
2015-04-04SMoffatNF
no factor from 2^71 to 2^72
2014-11-26snme2pm1NF
no factor from 2^70 to 2^71
2014-07-28snme2pm1NF
no factor from 2^69 to 2^70
2014-07-15snme2pm1NF
no factor from 2^68 to 2^69
2014-06-25snme2pm1NF
no factor from 2^67 to 2^68
2014-06-16snme2pm1NF
no factor from 2^66 to 2^67
2012-07-14Andrew BNF
no factor from 2^65 to 2^66
2010-10-14Charles A. MorrisNF
no factor from 2^64 to 2^65
2010-05-13Torchwood InstituteNF
no factor from 2^63 to 2^64