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
977871269Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
78229701531032.92008-06-01 01:54:33
20936970474003881511960.92015-12-23 21:00:16
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 2093697047400388151 / TF: 1-62