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
907266221Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4178760666007512278572168.52017-05-01 15:56:22
History
DateUserTypeResult
2017-05-01ConductorF
Factor: 417876066600751227857 / TF: 68-69
2016-06-28ConductorNF
no factor from 2^67 to 2^68
2016-05-23BloodIceNF
no factor from 2^1 to 2^64
2013-04-29ramgeisNF
no factor from 2^65 to 2^67
2013-04-28america64NF
no factor from 2^65 to 2^66
2011-11-22lindedNF
no factor from 2^64 to 2^65
2010-07-06lindedNF
no factor from 2^63 to 2^64