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
238687187Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2506491116100044533912167.82016-10-07 13:14:36
History
DateUserTypeResult
2016-10-07Mikhail E. GolosovF
Factor: 250649111610004453391 / TF: 67-68
2015-11-28brainboostNF
no factor from 2^66 to 2^67
2013-10-17Yan Ruimin ChinaNF
no factor from 2^65 to 2^66
2011-09-04tscNF
no factor from 2^64 to 2^65