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
665505823Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
5585831166514554498232168.92018-03-03 07:32:07
History
DateUserTypeResult
2018-03-03ConductorF
Factor: 558583116651455449823 / TF: 68-69
2016-03-19america64NF
no factor from 2^67 to 2^68
2014-04-26sasakiNF
no factor from 2^66 to 2^67
2011-11-03laleraNF
no factor from 2^65 to 2^66
2011-06-18laleraNF
no factor from 2^64 to 2^65
2010-06-09Architects CubedNF
no factor from 2^63 to 2^64