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
247290079Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1878374456704153131592167.32016-10-18 04:40:30
History
DateUserTypeResult
2016-10-18Mikhail E. GolosovF
Factor: 187837445670415313159 / TF: 67-68
2015-12-12sky_windhNF
no factor from 2^66 to 2^67
2013-11-04RichardNF
no factor from 2^65 to 2^66
2011-07-21ALSNF
no factor from 2^64 to 2^65