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
977851907Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
17600630272626971650.62008-06-11 01:10:36
21905796509881265991960.92015-12-23 20:31:34
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 2190579650988126599 / TF: 1-62