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
977561023Composite: 3 known prime factors
Factored
FactorDigitsBitsDate
314105078758906391754.82008-06-11 01:12:08
557407485051291531755.62015-02-04 12:38:33
16053997562071239111960.52015-12-23 17:37:01
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 1605399756207123911 / TF: 1-62
2015-02-04TJAOIF
Factor: 55740748505129153 / TF: 55-56