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
977631503Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
152041251346571443.82008-06-02 05:23:13
24211762926476005611961.12015-12-23 19:44:55
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 2421176292647600561 / TF: 1-62