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
237794849Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1985193519582224423772167.42016-10-06 12:45:51
History
DateUserTypeResult
2016-10-06Mikhail E. GolosovF
Factor: 198519351958222442377 / TF: 67-68
2015-11-27el groccoNF
no factor from 2^66 to 2^67
2013-10-17RichardNF
no factor from 2^65 to 2^66
2011-07-04OS1NF
no factor from 2^64 to 2^65