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

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MnStatusDetails
257232587Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
966550078224646114972066.42015-12-17 14:08:17
History
DateUserTypeResult
2015-12-17ConductorF
Factor: 96655007822464611497 / TF: 66-67
2013-11-15OS1NF
no factor from 2^65 to 2^66
2011-08-05albin_pouillesNF
no factor from 2^64 to 2^65
2010-03-12RichardNF
no factor from 2^63 to 2^64
2010-03-12RichardNF
no factor from 2^62 to 2^63