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
977171647Composite: 3 known prime factors
Factored
FactorDigitsBitsDate
342107793614711445.02008-06-02 06:09:09
1508831196699771547.12008-06-02 06:09:09
12843971098105457211960.22015-12-23 15:58:10
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 1284397109810545721 / TF: 1-62