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
665992421Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4444493260313474864892168.62018-03-05 20:47:50
History
DateUserTypeResult
2018-03-05ConductorF
Factor: 444449326031347486489 / TF: 68-69
2016-03-20america64NF
no factor from 2^67 to 2^68
2014-06-01sasakiNF
no factor from 2^66 to 2^67
2011-11-06laleraNF
no factor from 2^65 to 2^66
2011-06-28laleraNF
no factor from 2^64 to 2^65
2010-06-08Architects CubedNF
no factor from 2^63 to 2^64