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
446001221Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4279872300523375335832168.52016-12-15 15:38:06
History
DateUserTypeResult
2016-12-15ConductorF
Factor: 427987230052337533583 / TF: 68-69
2016-04-08sasakiNF
no factor from 2^67 to 2^68
2015-07-17LookASNF
no factor from 2^66 to 2^67
2014-08-31soldcakeNF
no factor from 2^65 to 2^66
2011-11-24Piotrek2234NF
no factor from 2^64 to 2^65
2010-03-20Architects CubedNF
no factor from 2^63 to 2^64