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
207108299Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
865667639312139071512066.22015-10-06 09:40:56
History
DateUserTypeResult
2015-10-06ConductorF
Factor: 86566763931213907151 / TF: 66-67
2013-09-06riccardo ubertiNF
no factor from 2^65 to 2^66
2011-05-12RichardNF
no factor from 2^64 to 2^65