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
801764407Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
19805366548231691825292270.72020-02-05 12:19:26
History
DateUserTypeResult
2020-02-05ConductorF
Factor: 1980536654823169182529 / TF: 70-71
2012-08-02James HeinrichNF
no factor from 2^69 to 2^70
2012-04-22James HeinrichNF
no factor from 2^68 to 2^69
2011-09-03James HeinrichNF
no factor from 2^64 to 2^68