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
977890079Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
78231206331032.92008-06-01 01:55:20
20457034816244214471960.82015-12-29 08:32:34
History
DateUserTypeResult
2015-12-29ConductorF
Factor: 2045703481624421447 / TF: 1-62