Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
121527143Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
3938713394556966044435524783933098.32024-02-28 16:34:38
P-1 factors
DateFactorB1B2
2024-02-2839387133945569660444355247839367500056927130
History
DateUserTypeResult
2024-02-28Smok_bmv F-PM1
Factor: 393871339455696604443552478393 / (P-1, B1=675000, B2=56927130)
2022-06-24TheJudgerNF
no factor from 2^76 to 2^77
2021-08-20TheJudgerNF
no factor from 2^75 to 2^76
2021-08-20TheJudgerNF
no factor from 2^74 to 2^75
2020-03-23Niels_Mache_NextcloudNF
no factor from 2^73 to 2^74
2020-03-23Niels_Mache_NextcloudNF
no factor from 2^72 to 2^73
2015-06-04Smok_bmv NF
no factor from 2^71 to 2^72
2015-05-27symalladNF
no factor from 2^70 to 2^71
2013-12-17GrunwalderGIMPNF
no factor from 2^69 to 2^70
2013-12-17GrunwalderGIMPNF
no factor from 2^68 to 2^69
2013-12-17GrunwalderGIMPNF
no factor from 2^66 to 2^68
2012-08-19RichardNF
no factor from 2^65 to 2^66
2010-10-21Mr-PlonkNF
no factor from 2^64 to 2^65
2010-05-18carlos56NF
no factor from 2^63 to 2^64