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
248645993Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1454619957193297936072167.02015-12-15 19:23:22
History
DateUserTypeResult
2015-12-15Alex_soldierF
Factor: 145461995719329793607 / TF: 66-67
2013-10-30subgeniusNF
no factor from 2^65 to 2^66
2011-07-23sasaki3NF
no factor from 2^64 to 2^65