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
672248497Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4493887491703656636892168.62018-04-05 06:03:50
History
DateUserTypeResult
2018-04-05ConductorF
Factor: 449388749170365663689 / TF: 68-69
2017-01-07NoPolarBearsHereNF
no factor from 2^67 to 2^68
2014-07-15sasakiNF
no factor from 2^66 to 2^67
2013-04-21ramgeisNF
no factor from 2^65 to 2^66
2012-01-25LingUaanNF
no factor from 2^64 to 2^65
2010-07-26Architects CubedNF
no factor from 2^63 to 2^64