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
401446219Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
5064398422116335668332168.82016-11-15 15:30:09
History
DateUserTypeResult
2016-11-15ConductorF
Factor: 506439842211633566833 / TF: 68-69
2013-10-23The MawnNF
no factor from 2^66 to 2^68
2013-08-07The MawnNF
no factor from 2^65 to 2^66