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

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MnStatusDetails
486943Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
89597513826.4old
67714293591032.72008-07-21 09:20:17
20892428261927031650.92014-06-11 11:37:40
ECM
DigitsB1Curves
2550000280 / 280
30250000200 / 640
Estimated T-Level: 26.6
TF below 2^83 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-26Oliver Kruse32465B76810EA2273013
Verified2017-09-27Oliver Kruse32465B76810EA2273013
Verified2017-11-09kkmrkkblmbrbk32465B76810EA227344392313
Verified2020-04-18Oliver Kruse57630F548E1BC6ED313933453
Verified2024-11-27kkmrkkblmbrbk57630F548E1BC6ED322283153
History
DateUserTypeResult
2024-11-27XyzzyCERT
PRP Certification
Proof certified good
2024-11-27kkmrkkblmbrbkC-PRP
M486943/89597513/6771429359/2089242826192703 : 57630F548E1BC6ED
PRP proof power = 6
PRP: Verified
Proof certified good
2024-08-22cramsey87NF-PM1
B1=7000000, B2=42834594660
2020-04-18Oliver KruseC-PRP
M486943/89597513/6771429359/2089242826192703 : 57630F548E1BC6ED
PRP: Verified
PRP without proof (small exponent)
2017-11-09kkmrkkblmbrbkC-PRP
M486943/89597513/6771429359/2089242826192703 : 32465B76810EA227
PRP: Verified
PRP without proof (small exponent)
2017-09-27Oliver KruseC-PRP
M486943/89597513/6771429359/2089242826192703 : 32465B76810EA227
PRP: Verified
PRP without proof (not generated)
2017-09-26Oliver KruseC-PRP
M486943/89597513/6771429359/2089242826192703 : 32465B76810EA227
PRP: Verified
PRP without proof (not generated)
2014-06-11TJAOIF
Factor: 2089242826192703
2008-07-21J FeitsmaF
Factor: 6771429359