Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

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MnStatusDetails
277992227Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
16221887082708999464332270.52019-10-29 19:43:43
History
DateUserTypeResult
2019-10-29ConductorF
Factor: 1622188708270899946433 / TF: 70-71
2019-08-31YxinityNF
no factor from 2^69 to 2^70
2018-07-09Chabot PrimeNF
no factor from 2^68 to 2^69
2016-11-07sasaki3NF
no factor from 2^67 to 2^68
2016-01-15Thor VikNF
no factor from 2^66 to 2^67
2013-12-08tscNF
no factor from 2^65 to 2^66
2011-09-09GIMP PhilippinesNF
no factor from 2^64 to 2^65
2010-04-04rabbutNF
no factor from 2^63 to 2^64
2010-04-04rabbutNF
no factor from 2^62 to 2^63