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
801663517Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
18979751838180838855272270.72020-02-02 20:23:20
History
DateUserTypeResult
2020-02-02ConductorF
Factor: 1897975183818083885527 / TF: 70-71
2012-07-04James HeinrichNF
no factor from 2^69 to 2^70
2012-04-17James HeinrichNF
no factor from 2^68 to 2^69
2011-08-29James HeinrichNF
no factor from 2^64 to 2^68