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

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MnStatusDetails
150961009Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1952776023654616399449292477.42024-11-04 23:50:29
P-1 factors
DateFactorB1B2
2024-11-04195277602365461639944929640000640000
History
DateUserTypeResult
2024-11-04NobodyF-PM1
Factor: 195277602365461639944929 / (P-1, B1=640000)
2024-08-04JacobZNF
no factor from 2^76 to 2^77
2024-05-06GregNF
no factor from 2^68 to 2^69
2023-08-29La GüiraNF
no factor from 2^75 to 2^76
2023-02-06SRBaseNF
no factor from 2^74 to 2^75
2021-11-13SRBaseNF
no factor from 2^73 to 2^74
2018-02-27hktNF
no factor from 2^72 to 2^73
2018-02-27hktNF
no factor from 2^71 to 2^72
2018-01-23proxy2222NF
no factor from 2^70 to 2^71
2017-07-28Choi4KANGNF
no factor from 2^69 to 2^70
2016-06-30Josh FamestadNF
no factor from 2^68 to 2^69
2016-06-16ANONYMOUSNF
no factor from 2^67 to 2^68
2015-03-28RichardNF
no factor from 2^66 to 2^67
2013-01-16firereddNF
no factor from 2^65 to 2^66
2011-01-13Damian SilvestreNF
no factor from 2^64 to 2^65
2010-06-22Torchwood InstituteNF
no factor from 2^63 to 2^64