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

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MnStatusDetails
139077203Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2052080540815904684880012477.42024-10-05 13:24:52
P-1 factors
DateFactorB1B2
2024-10-0520520805408159046848800112010001400104530
History
DateUserTypeResult
2024-10-05Luke DurantF-PM1
Factor: 205208054081590468488001 / (P-1, B1=1201000, B2=1400104530)
2024-08-26Brent GoebelNF
no factor from 2^76 to 2^77
2024-07-14SRBaseNF
no factor from 2^75 to 2^76
2023-01-15SRBaseNF
no factor from 2^74 to 2^75
2021-08-03SRBaseNF
no factor from 2^73 to 2^74
2020-11-16SRBaseNF
no factor from 2^72 to 2^73
2016-03-06SourceBinary.comNF
no factor from 2^71 to 2^72
2016-02-29guruNF
no factor from 2^70 to 2^71
2016-02-29guruNF
no factor from 2^69 to 2^70
2016-02-29guruNF
no factor from 2^68 to 2^69
2016-02-25Josh FamestadNF
no factor from 2^67 to 2^68
2015-02-09tscNF
no factor from 2^66 to 2^67
2012-11-24RichardNF
no factor from 2^65 to 2^66
2010-12-07RichardNF
no factor from 2^64 to 2^65
2010-06-13Torchwood InstituteNF
no factor from 2^63 to 2^64