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
207389753Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1189563411843848595112166.72015-10-23 19:23:04
History
DateUserTypeResult
2015-10-23ConductorF
Factor: 118956341184384859511 / TF: 66-67
2013-08-09-Anonymous-NF
no factor from 2^65 to 2^66
2011-05-11dslNF
no factor from 2^64 to 2^65