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
277355761Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
13665209733834464459592270.22019-09-01 10:50:33
History
DateUserTypeResult
2019-09-01ConductorF
Factor: 1366520973383446445959 / TF: 70-71
2019-09-01ConductorNF
no factor from 2^69 to 2^70
2018-07-08MrSupp_CZNF
no factor from 2^68 to 2^69
2016-11-05XolotlNF
no factor from 2^67 to 2^68
2016-01-14SFPeteNF
no factor from 2^66 to 2^67
2013-12-07jim f in mnNF
no factor from 2^65 to 2^66
2011-09-08CorbyguyNF
no factor from 2^64 to 2^65
2010-04-04Torchwood InstituteNF
no factor from 2^63 to 2^64
2010-04-04Torchwood InstituteNF
no factor from 2^62 to 2^63