Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
207191977Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
842686215859261463212066.22015-10-13 08:46:20
History
DateUserTypeResult
2015-10-13ConductorF
Factor: 84268621585926146321 / TF: 66-67
2013-12-27sasakiNF
no factor from 2^65 to 2^66
2011-05-10Charles A. MorrisNF
no factor from 2^64 to 2^65