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
977942989Composite: 3 known prime factors
Factored
FactorDigitsBitsDate
684560092311136.02008-06-01 01:57:34
2573016646943272871857.82015-07-21 10:20:58
26241927438818030331961.22015-12-29 08:46:07
History
DateUserTypeResult
2015-12-29ConductorF
Factor: 2624192743881803033 / TF: 1-62
2015-07-21TJAOIF
Factor: 257301664694327287 / TF: 57-58