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

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MnStatusDetails
155437621Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
11932859983887087077494395772889.92025-07-30 16:47:43
P-1 factors
DateFactorB1B2
2025-07-3011932859983887087077494395772000000735205800
History
DateUserTypeResult
2025-07-30GregF-PM1
Factor: 1193285998388708707749439577 / (P-1, B1=2000000, B2=735205800)
2025-06-03brian-nebiusNF
no factor from 2^77 to 2^78
2024-11-16PhantomasNF
no factor from 2^76 to 2^77
2024-08-15SRBaseNF
no factor from 2^75 to 2^76
2024-07-29Wentao HuangNF
no factor from 2^68 to 2^69
2023-02-16SRBaseNF
no factor from 2^74 to 2^75
2017-12-03AyczlyNF
no factor from 2^73 to 2^74
2017-12-03AyczlyNF
no factor from 2^72 to 2^73
2017-12-03AyczlyNF
no factor from 2^71 to 2^72
2017-12-03AyczlyNF
no factor from 2^70 to 2^71
2017-08-19La GüiraNF
no factor from 2^69 to 2^70
2016-07-02DerekNF
no factor from 2^68 to 2^69
2016-05-06DerekNF
no factor from 2^67 to 2^68
2015-04-11guruNF
no factor from 2^66 to 2^67
2013-02-09RichardNF
no factor from 2^65 to 2^66
2011-03-26Dalos LeeNF
no factor from 2^64 to 2^65