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
686004197Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1604285014071714314392167.12016-12-03 19:21:50
History
DateUserTypeResult
2016-12-03ConductorF
Factor: 160428501407171431439 / TF: 67-68
2014-08-04sasakiNF
no factor from 2^66 to 2^67
2014-02-07sasakiNF
no factor from 2^65 to 2^66
2012-02-01mmNF
no factor from 2^64 to 2^65
2010-07-14Architects CubedNF
no factor from 2^63 to 2^64