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

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MnStatusDetails
152613313Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
399294432754844194001432223964128134111.62024-09-23 07:29:10
P-1 factors
DateFactorB1B2
2024-09-23399294432754844194001432223964128113370001475205600
History
DateUserTypeResult
2024-09-23Luke DurantF-PM1
Factor: 3992944327548441940014322239641281 / (P-1, B1=1337000, B2=1475205600)
2024-08-04SRBaseNF
no factor from 2^75 to 2^76
2023-02-08SRBaseNF
no factor from 2^74 to 2^75
2021-11-14SRBaseNF
no factor from 2^73 to 2^74
2017-04-18Ryan PropperNF
no factor from 2^72 to 2^73
2017-04-15Ryan PropperNF
no factor from 2^71 to 2^72
2017-04-15Ryan PropperNF
no factor from 2^70 to 2^71
2017-04-11La GüiraNF
no factor from 2^69 to 2^70
2017-02-26tscNF
no factor from 2^68 to 2^69
2016-04-23mikeblasNF
no factor from 2^67 to 2^68
2015-03-31vwflat4NF
no factor from 2^66 to 2^67
2013-01-26RichardNF
no factor from 2^65 to 2^66
2011-01-17Charles A. MorrisNF
no factor from 2^64 to 2^65
2010-07-231997rj7NF
no factor from 2^63 to 2^64