Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
417017Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
209134025511134.3old
ECM
DigitsB1Curves
2550000280 / 280
30250000310 / 640
Estimated T-Level: 27.4
TF below 2^86 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-23Oliver KruseE00D03AEADA6E08F1013
Verified2017-11-02kkmrkkblmbrbkE00D03AEADA6E08F141466013
Verified2020-04-18Oliver Kruse3FEAFAB806760DC5138594153
Verified2024-10-25kkmrkkblmbrbk3FEAFAB806760DC5124563953
History
DateUserTypeResult
2024-10-26kakama51CERT
PRP Certification
Proof certified good
2024-10-25kkmrkkblmbrbkC-PRP
M417017/20913402551 : 3FEAFAB806760DC5
PRP proof power = 5
PRP: Verified
Proof certified good
2020-04-18Oliver KruseC-PRP
M417017/20913402551 : 3FEAFAB806760DC5
PRP: Verified
PRP without proof (small exponent)
2017-11-02kkmrkkblmbrbkC-PRP
M417017/20913402551 : E00D03AEADA6E08F
PRP: Verified
PRP without proof (small exponent)
2017-09-23Oliver KruseC-PRP
M417017/20913402551 : E00D03AEADA6E08F
PRP: Verified
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=3000000, B2=100000000, E=12