Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
121686427Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4470073778837271408832946930473098.52024-03-22 01:53:56
P-1 factors
DateFactorB1B2
2024-03-2244700737788372714088329469304768900062444400
History
DateUserTypeResult
2024-03-22Smok_bmv F-PM1
Factor: 447007377883727140883294693047 / (P-1, B1=689000, B2=62444400)
2022-06-24TheJudgerNF
no factor from 2^76 to 2^77
2021-08-21TheJudgerNF
no factor from 2^75 to 2^76
2021-08-21TheJudgerNF
no factor from 2^74 to 2^75
2015-07-09PEDNF
no factor from 2^73 to 2^74
2015-07-09PEDNF
no factor from 2^72 to 2^73
2015-07-09PEDNF
no factor from 2^71 to 2^72
2015-07-09PEDNF
no factor from 2^70 to 2^71
2014-01-06GrunwalderGIMPNF
no factor from 2^69 to 2^70
2014-01-06GrunwalderGIMPNF
no factor from 2^68 to 2^69
2014-01-06GrunwalderGIMPNF
no factor from 2^66 to 2^68
2012-08-15Dalos LeeNF
no factor from 2^65 to 2^66
2010-10-24alan145NF
no factor from 2^64 to 2^65
2010-05-19Mr-PlonkNF
no factor from 2^63 to 2^64