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
905612639Factored
FactorDigitsBitsDate
5217904477102994508472168.82017-04-19 04:39:19
History
DateUserTypeResult
2017-04-19ConductorF
Factor: 521790447710299450847 / TF: 68-69
2016-06-21ConductorNF
no factor from 2^67 to 2^68
2015-02-06Gordon SpenceNF
no factor from 2^66 to 2^67
2013-04-25ramgeisNF
no factor from 2^65 to 2^66
2011-10-29lindeeNF
no factor from 2^64 to 2^65
2010-07-12lindedNF
no factor from 2^63 to 2^64