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
198240403Factored
FactorDigitsBitsDate
39237279652639476815532271.72015-09-20 04:55:06
History
DateUserTypeResult
2015-09-20demfloroF
Factor: 3923727965263947681553 / TF: 71-72
2015-09-20demfloroNF
no factor from 2^70 to 2^71
2015-09-20demfloroNF
no factor from 2^69 to 2^70
2015-09-20demfloroNF
no factor from 2^68 to 2^69
2015-09-20demfloroNF
no factor from 2^66 to 2^68
2013-07-04sasaki3NF
no factor from 2^65 to 2^66
2011-04-26sasaki3NF
no factor from 2^64 to 2^65
2010-08-091997rj7NF
no factor from 2^63 to 2^64