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
238617649Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1937586853586225085592167.42016-10-07 10:35:06
History
DateUserTypeResult
2016-10-07Mikhail E. GolosovF
Factor: 193758685358622508559 / TF: 67-68
2015-11-28RDbrvnNF
no factor from 2^66 to 2^67
2013-10-19RichardNF
no factor from 2^65 to 2^66
2011-07-05sasaki3NF
no factor from 2^64 to 2^65