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

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MnStatusDetails
262125257Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1273579838279168906872166.82015-12-20 14:17:10
History
DateUserTypeResult
2015-12-20ConductorF
Factor: 127357983827916890687 / TF: 66-67
2013-11-20Andriy MakukhaNF
no factor from 2^65 to 2^66
2011-08-14HBendtzNF
no factor from 2^64 to 2^65
2010-03-16Dalos LeeNF
no factor from 2^63 to 2^64
2010-03-16Dalos LeeNF
no factor from 2^62 to 2^63