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
977167421Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
315331926756711444.82008-06-02 06:09:07
22147661787213537591960.92015-12-23 15:54:48
History
DateUserTypeResult
2025-06-02mikrNF
no factor from 2^68 to 2^71
2015-12-23ConductorF
Factor: 2214766178721353759 / TF: 1-62