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

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MnStatusDetails
130778617Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1871651550533029633068972477.32024-08-17 17:38:47
P-1 factors
DateFactorB1B2
2024-08-1718716515505330296330689710770001077000
History
DateUserTypeResult
2024-08-17Simon JosefssonF-PM1
Factor: 187165155053302963306897 / (P-1, B1=1077000)
2023-07-23TheJudgerNF
no factor from 2^76 to 2^77
2023-07-23TheJudgerNF
no factor from 2^75 to 2^76
2022-12-27SRBaseNF
no factor from 2^74 to 2^75
2021-07-18SRBaseNF
no factor from 2^73 to 2^74
2020-10-22SRBaseNF
no factor from 2^72 to 2^73
2015-12-25SMoffatNF
no factor from 2^71 to 2^72
2015-12-23SMoffatNF
no factor from 2^70 to 2^71
2015-12-16La GüiraNF
no factor from 2^69 to 2^70
2015-12-16La GüiraNF
no factor from 2^68 to 2^69
2015-11-14el groccoNF
no factor from 2^67 to 2^68
2015-01-18GrunwalderGIMPNF
no factor from 2^66 to 2^67
2012-10-12sasaki3NF
no factor from 2^65 to 2^66
2010-11-13Charles A. MorrisNF
no factor from 2^64 to 2^65
2010-06-01-Anonymous-NF
no factor from 2^63 to 2^64