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
977494597Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
22756074218171341.02008-06-01 01:38:38
21344416872149564171960.92015-12-23 17:04:39
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 2134441687214956417 / TF: 1-62