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
191713937Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1258909536341537724732166.82015-09-01 17:55:20
History
DateUserTypeResult
2015-09-01demfloroF
Factor: 125890953634153772473 / TF: 66-68
2013-06-10tscNF
no factor from 2^65 to 2^66
2011-04-13tscNF
no factor from 2^64 to 2^65
2010-08-04Mr-PlonkNF
no factor from 2^63 to 2^64