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
975699523Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
409793799671135.32008-06-01 06:19:13
19613162998766527511960.82015-12-30 19:54:08
History
DateUserTypeResult
2015-12-30ConductorF
Factor: 1961316299876652751 / TF: 1-62