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
977489701Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
58649382071032.42008-06-01 01:38:27
12516874562251817691960.12015-12-23 17:03:36
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 1251687456225181769 / TF: 1-62