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

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Exponent Range:










MnStatusDetails
606589Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
42461231825.3old
8218683347090874507372169.52015-08-28 08:22:06
ECM
DigitsB1Curves
2550000280 / 280
30250000214 / 640
Estimated T-Level: 26.7
TF below 2^84 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-27Oliver Kruse80F704F97D23DFF12013
Verified2017-09-28Oliver Kruse80F704F97D23DFF12013
Verified2017-11-09kkmrkkblmbrbk80F704F97D23DFF1237340213
Verified2020-04-19Oliver Kruse070B9ADE739C9D08238831553
Verified2025-01-30kkmrkkblmbrbk070B9ADE739C9D08257762053
History
DateUserTypeResult
2025-01-30ResolverCERT
PRP Certification
Proof certified good
2025-01-30kkmrkkblmbrbkC-PRP
M606589/42461231/821868334709087450737 : 070B9ADE739C9D08
PRP proof power = 6
PRP: Verified
Proof certified good
2022-12-17USAFSSNF-PM1
B1=1750000, B2=5543237700
2020-04-19Oliver KruseC-PRP
M606589/42461231/821868334709087450737 : 070B9ADE739C9D08
PRP: Verified
PRP without proof (small exponent)
2017-11-09kkmrkkblmbrbkC-PRP
M606589/42461231/821868334709087450737 : 80F704F97D23DFF1
PRP: Verified
PRP without proof (small exponent)
2017-09-28Oliver KruseC-PRP
M606589/42461231/821868334709087450737 : 80F704F97D23DFF1
PRP: Verified
PRP without proof (not generated)
2017-09-27Oliver KruseC-PRP
M606589/42461231/821868334709087450737 : 80F704F97D23DFF1
PRP: Verified
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=1000000, B2=30000000, E=12
2015-08-28TJAOIF-ECM
Factor: 821868334709087450737 / (ECM curve 16, B1=50000, B2=5000000)