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

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MnStatusDetails
92978441Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
65371396996816154166513572092892.42019-12-18 04:15:52
P-1 factors
DateFactorB1B2
2019-12-18653713969968161541665135720972000013860000
History
DateUserTypeResult
2019-12-18ky0urakuF-PM1
Factor: 6537139699681615416651357209 / (P-1, B1=720000, B2=13860000, E=12)
2019-08-12TheJudgerNF
no factor from 2^76 to 2^77
2019-08-12TheJudgerNF
no factor from 2^75 to 2^76
2019-08-12TheJudgerNF
no factor from 2^74 to 2^75
2019-04-23DerekNF
no factor from 2^73 to 2^74
2019-02-10DerekNF
no factor from 2^72 to 2^73
2018-07-01penluNF
no factor from 2^71 to 2^72
2015-08-24monstNF
no factor from 2^70 to 2^71
2015-03-19andrea.biancalanaNF
no factor from 2^69 to 2^70
2014-11-25monstNF
no factor from 2^68 to 2^69
2014-09-20SMoffatNF
no factor from 2^67 to 2^68
2014-02-08-Anonymous-NF
no factor from 2^66 to 2^67
2013-07-17David CampeauNF
no factor from 2^65 to 2^66
2011-01-07Architects CubedNF
no factor from 2^64 to 2^65