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

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MnStatusDetails
91132043Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2205003863740194232660356012787.52019-04-02 09:18:32
P-1 factors
DateFactorB1B2
2019-04-0222050038637401942326603560170000013125000
History
DateUserTypeResult
2019-04-02ky0urakuF-PM1
Factor: 220500386374019423266035601 / (P-1, B1=700000, B2=13125000, E=6)
2019-03-03TheJudgerNF
no factor from 2^76 to 2^77
2018-12-09TheJudgerNF
no factor from 2^75 to 2^76
2018-12-09TheJudgerNF
no factor from 2^74 to 2^75
2018-01-091997rj7NF
no factor from 2^73 to 2^74
2018-01-091997rj7NF
no factor from 2^72 to 2^73
2017-02-24monstNF
no factor from 2^71 to 2^72
2014-09-05shaugeNF
no factor from 2^70 to 2^71
2014-04-08SWL551NF
no factor from 2^69 to 2^70
2014-04-08SWL551NF
no factor from 2^68 to 2^69
2014-04-08SWL551NF
no factor from 2^67 to 2^68
2014-04-08SWL551NF
no factor from 2^66 to 2^67
2011-11-04Shadowjd007NF
no factor from 2^65 to 2^66
2010-12-26Architects CubedNF
no factor from 2^64 to 2^65