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
977792567Composite: 4 known prime factors
Factored
FactorDigitsBitsDate
1035071655574871546.62008-06-02 05:25:03
4190409677305156491858.52015-09-11 17:52:51
40054646661244565991961.82015-12-23 19:48:57
891792438119295805032066.32020-01-02 13:34:13
History
DateUserTypeResult
2023-05-28mikrNF
no factor from 2^67 to 2^73
2022-08-14J.R. AllenNF
no factor from 2^62 to 2^66
2020-01-02TJAOIF
Factor: 89179243811929580503 / TF: 66-67
2015-12-23ConductorF
Factor: 4005464666124456599 / TF: 1-62
2015-09-11TJAOIF
Factor: 419040967730515649 / TF: 58-59