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
239976223Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1515085042807759603032167.02016-10-09 07:44:16
History
DateUserTypeResult
2016-10-09Mikhail E. GolosovF
Factor: 151508504280775960303 / TF: 67-68
2015-11-30Matej PucekNF
no factor from 2^66 to 2^67
2013-10-20Yan Ruimin ChinaNF
no factor from 2^65 to 2^66
2011-07-08Mr-PlonkNF
no factor from 2^64 to 2^65