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
248353421Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1814429971849031813272167.32016-10-20 00:29:04
History
DateUserTypeResult
2016-10-20Mikhail E. GolosovF
Factor: 181442997184903181327 / TF: 67-68
2015-12-13tscNF
no factor from 2^66 to 2^67
2013-11-05Yan Ruimin ChinaNF
no factor from 2^65 to 2^66
2011-07-22sasaki3NF
no factor from 2^64 to 2^65