Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
101379631Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
494428263443146539710115034392995.32020-11-30 05:41:28
P-1 factors
DateFactorB1B2
2020-11-30494428263443146539710115034397380000
History
DateUserTypeResult
2020-11-30Denis PorvaF-PM1
Factor: 49442826344314653971011503439 / (P-1, B1=738000)
2020-10-051997rj7NF
no factor from 2^75 to 2^76
2020-10-051997rj7NF
no factor from 2^74 to 2^75
2020-03-30SRBaseNF
no factor from 2^73 to 2^74
2020-03-22el groccoNF
no factor from 2^72 to 2^73
2014-12-03RichD0NF
no factor from 2^71 to 2^72
2014-06-10timc995NF
no factor from 2^70 to 2^71
2014-06-07webbertNF
no factor from 2^69 to 2^70
2013-12-10forrest-lumpkinNF
no factor from 2^68 to 2^69
2013-11-04mhskNF
no factor from 2^67 to 2^68
2013-08-25Preben SNF
no factor from 2^66 to 2^67
2012-04-15sasaki3NF
no factor from 2^65 to 2^66
2010-08-13Torchwood InstituteNF
no factor from 2^64 to 2^65
2010-04-071997rj7NF
no factor from 2^63 to 2^64