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
207338981Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1123899141745969856392166.62015-10-22 14:37:15
History
DateUserTypeResult
2015-10-22ConductorF
Factor: 112389914174596985639 / TF: 66-67
2013-08-03-Anonymous-NF
no factor from 2^65 to 2^66
2011-05-12RichardNF
no factor from 2^64 to 2^65