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

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MnStatusDetails
483953Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
2029795807477701111857.5old
4599149497925758871858.72015-05-15 10:18:29
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 Kruse0E4540123C9BF6812013
Verified2017-09-27Oliver Kruse0E4540123C9BF6812013
Verified2017-11-09kkmrkkblmbrbk0E4540123C9BF681228997913
Verified2020-04-18Oliver Kruse82C2D8A7563FA2AE236912553
Verified2024-11-26kkmrkkblmbrbk82C2D8A7563FA2AE221692553
History
DateUserTypeResult
2024-11-26NicholasBochenekCERT
PRP Certification
Proof certified good
2024-11-26kkmrkkblmbrbkC-PRP
M483953/202979580747770111/459914949792575887 : 82C2D8A7563FA2AE
PRP proof power = 6
PRP: Verified
Proof certified good
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2020-04-18Oliver KruseC-PRP
M483953/202979580747770111/459914949792575887 : 82C2D8A7563FA2AE
PRP: Verified
PRP without proof (small exponent)
2017-11-09kkmrkkblmbrbkC-PRP
M483953/202979580747770111/459914949792575887 : 0E4540123C9BF681
PRP: Verified
PRP without proof (small exponent)
2017-09-27Oliver KruseC-PRP
M483953/202979580747770111/459914949792575887 : 0E4540123C9BF681
PRP: Verified
PRP without proof (not generated)
2017-09-26Oliver KruseC-PRP
M483953/202979580747770111/459914949792575887 : 0E4540123C9BF681
PRP: Verified
PRP without proof (not generated)
2015-05-15TJAOIF-ECM
Factor: 459914949792575887 / (ECM curve 27, B1=50000, B2=5000000)