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
658273223Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
3221544747738073903992168.12016-10-25 18:17:05
9411862454030916531432169.72016-10-25 18:17:05
History
DateUserTypeResult
2016-10-25NipalF
Factor: 322154474773807390399 / TF: 67-70
2016-10-25NipalF
Factor: 941186245403091653143 / TF: 67-70
2014-07-01sasakiNF
no factor from 2^66 to 2^67
2014-02-23america64NF
no factor from 2^65 to 2^66