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
977033957Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
140755791254151671753.62008-05-27 23:26:12
28656679586939997431961.32015-12-22 19:37:41
History
DateUserTypeResult
2015-12-22ConductorF
Factor: 2865667958693999743 / TF: 1-62