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
970660489Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
5116769661480617551272168.82016-09-20 20:55:22
History
DateUserTypeResult
2016-09-20Sergey KomolovF
Factor: 511676966148061755127 / TF: 68-69
2016-05-09monstNF
no factor from 2^67 to 2^68
2015-02-08Gordon SpenceNF
no factor from 2^66 to 2^67
2012-07-15lindedNF
no factor from 2^65 to 2^66
2011-01-08lindedNF
no factor from 2^64 to 2^65
2010-03-29lindedNF
no factor from 2^63 to 2^64