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
319997173Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2079452180953344153912167.52016-12-11 22:23:26
History
DateUserTypeResult
2016-12-11Alex_soldierF
Factor: 207945218095334415391 / TF: 67-68*
2016-02-26SFPeteNF
no factor from 2^66 to 2^67
2014-01-28tscNF
no factor from 2^65 to 2^66
2010-08-18GrunwalderGIMPNF
no factor from 2^64 to 2^65