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
237899867Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1930019869859208498792167.42016-10-06 16:37:24
History
DateUserTypeResult
2016-10-06Mikhail E. GolosovF
Factor: 193001986985920849879 / TF: 67-68
2015-11-26tscNF
no factor from 2^66 to 2^67
2013-10-14Grant McCrackenNF
no factor from 2^65 to 2^66
2011-07-05RichardNF
no factor from 2^64 to 2^65