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
823337Factored
FactorDigitsBitsDate
5550938651462727431858.9old
ECM
DigitsB1Curves
2550000280 / 280
30250000100 / 640
Estimated T-Level: 25.8
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-28Oliver Kruse2107089AA432BC271013
Verified2017-10-14Oliver Kruse2107089AA432BC27132329413
Verified2017-12-18ATH2107089AA432BC27173792713
Unverified (Reliable)2020-04-21Oliver Kruse5A8F6AF9331020__165827053
History
DateUserTypeResult
2020-04-21Oliver KruseC-PRP
M823337/555093865146272743 : 5A8F6AF9331020__
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-12-18ATHC-PRP
M823337/555093865146272743 : 2107089AA432BC27
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-10-14Oliver KruseC-PRP
M823337/555093865146272743 : 2107089AA432BC27
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-09-28Oliver KruseC-PRP
M823337/555093865146272743 : 2107089AA432BC27
PRP: Unverified (Reliable)
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=300000, B2=10000000, E=12