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
975074521Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
9516727324971239.82008-05-31 23:58:19
39238564129177503831961.82015-12-28 14:23:49
History
DateUserTypeResult
2015-12-28ConductorF
Factor: 3923856412917750383 / TF: 1-65