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
647016163Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1663652749177053091672167.22016-09-07 06:05:14
History
DateUserTypeResult
2016-09-07NipalF
Factor: 166365274917705309167 / TF: 67-70
2014-06-15sasakiNF
no factor from 2^66 to 2^67
2014-03-19america64NF
no factor from 2^65 to 2^66
2010-11-05Architects CubedNF
no factor from 2^64 to 2^65
2010-07-31Architects CubedNF
no factor from 2^63 to 2^64