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
203328247Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
821175517087648275592066.22015-09-29 04:35:59
History
DateUserTypeResult
2024-03-13James HeinrichF
Factor: 82117551708764827559 / TF: 1-69
2015-09-29ConductorF
Factor: 82117551708764827559 / TF: 66-67
2013-09-24riccardo ubertiNF
no factor from 2^65 to 2^66
2011-05-04vapaddyNF
no factor from 2^64 to 2^65