Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
674419Factored
FactorDigitsBitsDate
22253921284078510792332270.92007-12-05 04:13:17
ECM
DigitsB1Curves
2550000280 / 280
30250000215 / 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 KruseD71FE85E4575AC291013
Verified2017-09-28Oliver KruseD71FE85E4575AC291013
Verified2017-11-08kkmrkkblmbrbkD71FE85E4575AC29121133613
Unverified (Reliable)2020-04-20Oliver Kruse660E1249576E2A__153848453
History
DateUserTypeResult
2020-04-20Oliver KruseC-PRP
M674419/2225392128407851079233 : 660E1249576E2A__
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-11-08kkmrkkblmbrbkC-PRP
M674419/2225392128407851079233 : D71FE85E4575AC29
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-09-28Oliver KruseC-PRP
M674419/2225392128407851079233 : D71FE85E4575AC29
PRP: Unverified (Reliable)
PRP without proof (not generated)
2017-09-27Oliver KruseC-PRP
M674419/2225392128407851079233 : D71FE85E4575AC29
PRP: Unverified (Reliable)
PRP without proof (not generated)
2007-12-05James HeinrichF-ECM
Factor: 2225392128407851079233