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

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MnStatusDetails
126757663Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
6406724115427466066686572479.12024-07-12 04:42:20
P-1 factors
DateFactorB1B2
2024-07-12640672411542746606668657911000911000
History
DateUserTypeResult
2024-07-12PRIME ENERGYF-PM1
Factor: 640672411542746606668657 / (P-1, B1=911000)
2022-08-01TheJudgerNF
no factor from 2^76 to 2^77
2022-08-01TheJudgerNF
no factor from 2^75 to 2^76
2022-08-01TheJudgerNF
no factor from 2^74 to 2^75
2021-07-11SRBaseNF
no factor from 2^73 to 2^74
2020-11-16SRBaseNF
no factor from 2^72 to 2^73
2015-10-22SourceBinary.comNF
no factor from 2^71 to 2^72
2015-10-20SourceBinary.comNF
no factor from 2^70 to 2^71
2015-10-18SourceBinary.comNF
no factor from 2^69 to 2^70
2015-08-19el groccoNF
no factor from 2^68 to 2^69
2015-08-14el groccoNF
no factor from 2^67 to 2^68
2015-01-04Andrew BNF
no factor from 2^66 to 2^67
2012-09-20Robert FolzNF
no factor from 2^65 to 2^66
2010-11-03t2NF
no factor from 2^64 to 2^65
2010-05-26Torchwood InstituteNF
no factor from 2^63 to 2^64