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

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MnStatusDetails
11278829Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
68575280331032.7old
1284886681022391546.92008-09-08 07:29:18
2666239906464600610092167.92023-06-23 10:52:12
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2021-06-25Luigi Morelli8DA9F1CEF16FBA3621116866353
Verified2023-06-28Perig8DA9F1CEF16FBA363516939453
History
DateUserTypeResult
2025-06-02vshNF
no factor from 2^71 to 2^72
2025-05-22vshNF-PM1
B1=10000000, B2=20257605060
2025-04-03vshNF
no factor from 2^70 to 2^71
2025-03-11vshNF
no factor from 2^69 to 2^70
2025-02-10vshNF
no factor from 2^68 to 2^69
2024-06-19vshNF-PM1
B1=625000, B2=277763850
2024-05-18vshNF-PM1
B1=312500, B2=60859260
2023-06-29David M. WeatherellCERT
PRP Certification
Proof certified good
2023-06-28PerigC-PRP
M11278829/6857528033/128488668102239/266623990646460061009 : 8DA9F1CEF16FBA36
PRP proof power = 8
PRP: Verified
Proof certified good
2023-06-23TJAOIF
Factor: 266623990646460061009 / TF: 67-68
2021-06-26andyscouseCERT
PRP Certification
Proof certified good
2021-06-25Luigi MorelliC-PRP
M11278829/6857528033/128488668102239 : 8DA9F1CEF16FBA36
PRP proof power = 8
PRP: Verified (Factored)
Proof certified good
2008-09-08Will EdgingtonF
Factor: 128488668102239