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
207568733Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2121470968053953030632167.52015-10-29 15:08:04
History
DateUserTypeResult
2024-03-17James HeinrichF
Factor: 212147096805395303063 / TF: 1-69
2015-10-29ConductorF
Factor: 212147096805395303063 / TF: 67-68
2015-09-27rob147147NF
no factor from 2^66 to 2^67
2013-08-04Son JohanNF
no factor from 2^65 to 2^66
2011-05-11Charles A. MorrisNF
no factor from 2^64 to 2^65