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
977566393Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
70912666148231342.72008-06-11 00:39:46
12963130049508121931960.22015-12-23 17:38:12
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 1296313004950812193 / TF: 1-62