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
977987279Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
958427533431136.52008-06-01 01:59:26
25783807624791877611961.22015-12-29 08:56:46
History
DateUserTypeResult
2015-12-29ConductorF
Factor: 2578380762479187761 / TF: 1-62