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
977839979Composite: 3 known prime factors
Factored
FactorDigitsBitsDate
19556799591030.92008-06-01 01:53:13
5651915078631239.02008-06-01 01:53:14
25028845629444450471961.12015-12-23 20:29:21
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 2502884562944445047 / TF: 1-62