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
563869Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
46823681771032.1old
ECM
DigitsB1Curves
2550000280 / 280
30250000200 / 640
Estimated T-Level: 26.6
TF below 2^83 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-27Oliver Kruse5A9B8F8402F1033B1013
Verified2017-10-13kkmrkkblmbrbk5A9B8F8402F1033B149266913
Verified2020-04-19Oliver KruseB101671938C008D21672553
Verified2025-01-09kkmrkkblmbrbkB101671938C008D2142961653
History
DateUserTypeResult
2025-01-09Runtime ErrorCERT
PRP Certification
Proof certified good
2025-01-09kkmrkkblmbrbkC-PRP
M563869/4682368177 : B101671938C008D2
PRP proof power = 6
PRP: Verified
Proof certified good
2021-08-31ViliamFNF-PM1
B1=15000000, B2=1815000000
2020-04-19Oliver KruseC-PRP
M563869/4682368177 : B101671938C008D2
PRP: Verified
PRP without proof (small exponent)
2017-10-13kkmrkkblmbrbkC-PRP
M563869/4682368177 : 5A9B8F8402F1033B
PRP: Verified
PRP without proof (small exponent)
2017-09-27Oliver KruseC-PRP
M563869/4682368177 : 5A9B8F8402F1033B
PRP: Verified
PRP without proof (not generated)