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
848297Factored
FactorDigitsBitsDate
1182011819079421951932166.72008-01-23 22:14:51
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 Kruse0934EBCA0426F5891013
Verified2017-10-14Oliver Kruse0934EBCA0426F589129513913
Verified2017-12-18ATH0934EBCA0426F589175085713
Unverified (Reliable)2020-04-22Oliver KruseBE17E7C62F43E4__141039253
History
DateUserTypeResult
2020-04-22Oliver KruseC-PRP
M848297/118201181907942195193 : BE17E7C62F43E4__
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-12-18ATHC-PRP
M848297/118201181907942195193 : 0934EBCA0426F589
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-10-14Oliver KruseC-PRP
M848297/118201181907942195193 : 0934EBCA0426F589
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-09-28Oliver KruseC-PRP
M848297/118201181907942195193 : 0934EBCA0426F589
PRP: Unverified (Reliable)
PRP without proof (not generated)
2008-01-23Team_BunduF-ECM
Factor: 118201181907942195193