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
45721331Factored
FactorDigitsBitsDate
20687760718603504036872270.82012-09-10 16:51:54
P-1 factors
DateFactorB1B2
2012-09-10206877607186035040368749000010657500
History
DateUserTypeResult
2012-09-10Jwb52zF-PM1
Factor: 2068776071860350403687
2011-10-26DubslowNF
no factor from 2^69 to 2^70
2011-10-26DubslowNF
no factor from 2^68 to 2^69