Marin Mersenne 2^P-1
Username
Password
Forgot password?
Blue
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
206411Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
141321355271133.7old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000178 / 1566
Estimated T-Level: 30.6
TF below 2^97 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver KruseD447568C60F078231013
Verified2017-10-12kkmrkkblmbrbkD447568C60F0782319914313
Verified2020-04-17Oliver Kruse82007A627157D26718920653
Verified2023-08-03USAFSS82007A627157D267111697453
History
DateUserTypeResult
2023-08-03curtiscCERT
PRP Certification
Proof certified good
2023-08-03USAFSSC-PRP
M206411/14132135527 : 82007A627157D267
PRP proof power = 5
PRP: Verified
Proof certified good
2022-02-10Oliver KruseNF-PM1
B1=30000000, B2=10070832992220
2021-05-10Oliver KruseNF-PM1
B1=30000000, B2=3000000000
2020-04-17Oliver KruseC-PRP
M206411/14132135527 : 82007A627157D267
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M206411/14132135527 : D447568C60F07823
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M206411/14132135527 : D447568C60F07823
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M206411/14132135527 : D447568C60F07823
PRP without proof (not generated)