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

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MnStatusDetails
197570629Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4072146669602780689372168.52017-09-02 20:38:17
History
DateUserTypeResult
2025-03-14James HeinrichF
Factor: 407214666960278068937 / TF: 68-70
2017-09-02ConductorF
Factor: 407214666960278068937 / TF: 68-69
2016-08-09XZTNF
no factor from 2^67 to 2^68
2015-09-18ThibaultNF
no factor from 2^66 to 2^67
2013-07-02KayJongsmaNF
no factor from 2^65 to 2^66
2011-04-25Damian SilvestreNF
no factor from 2^64 to 2^65
2010-08-08Torchwood InstituteNF
no factor from 2^63 to 2^64