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
674741Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
5397929722.4old
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 KruseEFC9732275652A901013
Verified2017-09-28Oliver KruseEFC9732275652A901013
Verified2017-11-09kkmrkkblmbrbkEFC9732275652A90120015413
Verified2020-04-20Oliver Kruse1A4F3362F3B7C7A9157978053
Verified2025-03-01kkmrkkblmbrbk1A4F3362F3B7C7A9143517953
History
DateUserTypeResult
2025-03-01Fabrice BelletCERT
PRP Certification
Proof certified good
2025-03-01kkmrkkblmbrbkC-PRP
M674741/5397929 : 1A4F3362F3B7C7A9
PRP proof power = 6
PRP: Verified
Proof certified good
2024-09-20timc995NF-PM1
B1=1000000, B2=220135215300
2020-04-20Oliver KruseC-PRP
M674741/5397929 : 1A4F3362F3B7C7A9
PRP: Verified
PRP without proof (small exponent)
2017-11-09kkmrkkblmbrbkC-PRP
M674741/5397929 : EFC9732275652A90
PRP: Verified
PRP without proof (small exponent)
2017-09-28Oliver KruseC-PRP
M674741/5397929 : EFC9732275652A90
PRP: Verified
PRP without proof (not generated)
2017-09-27Oliver KruseC-PRP
M674741/5397929 : EFC9732275652A90
PRP: Verified
PRP without proof (not generated)