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
647111147Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
23131638147861033438792271.02016-09-03 10:54:29
History
DateUserTypeResult
2016-09-03NipalF
Factor: 2313163814786103343879 / TF: 70-71
2016-08-14YxinityNF
no factor from 2^68 to 2^70
2014-03-19america64NF
no factor from 2^67 to 2^68
2013-03-25-Anonymous-NF
no factor from 2^66 to 2^67
2011-10-17Rob_DeeNF
no factor from 2^65 to 2^66
2010-11-03Rob_DeeNF
no factor from 2^64 to 2^65
2010-05-29Rob_DeeNF
no factor from 2^63 to 2^64