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
970501043Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4386521718504171981112168.62016-09-06 20:57:58
History
DateUserTypeResult
2016-09-06Sergey KomolovF
Factor: 438652171850417198111 / TF: 68-69
2016-05-05monstNF
no factor from 2^67 to 2^68
2015-02-07Gordon SpenceNF
no factor from 2^66 to 2^67
2012-07-15lindedNF
no factor from 2^65 to 2^66
2011-01-07lindedNF
no factor from 2^64 to 2^65
2010-03-25lindeeNF
no factor from 2^63 to 2^64