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
483869Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
3870953721.9old
746125999929.52008-07-21 09:20:13
2271735922871237.72008-07-21 09:20:13
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
Verified2017-09-26Oliver KruseF2A7A9196BC70CFC3013
Verified2017-09-27Oliver KruseF2A7A9196BC70CFC3013
Verified2017-11-09kkmrkkblmbrbkF2A7A9196BC70CFC331624313
Verified2020-04-18Oliver Kruse731E43B3BDD56C4136612953
Verified2024-11-26kkmrkkblmbrbk731E43B3BDD56C4134497353
History
DateUserTypeResult
2024-11-26XyzzyCERT
PRP Certification
Proof certified good
2024-11-26kkmrkkblmbrbkC-PRP
M483869/3870953/746125999/227173592287 : 731E43B3BDD56C41
PRP proof power = 6
PRP: Verified
Proof certified good
2024-08-22cramsey87NF-PM1
B1=7000000, B2=42834594660
2020-04-18Oliver KruseC-PRP
M483869/3870953/746125999/227173592287 : 731E43B3BDD56C41
PRP: Verified
PRP without proof (small exponent)
2017-11-09kkmrkkblmbrbkC-PRP
M483869/3870953/746125999/227173592287 : F2A7A9196BC70CFC
PRP: Verified
PRP without proof (small exponent)
2017-09-27Oliver KruseC-PRP
M483869/3870953/227173592287/746125999 : F2A7A9196BC70CFC
PRP: Verified
PRP without proof (not generated)
2017-09-26Oliver KruseC-PRP
M483869/3870953/227173592287/746125999 : F2A7A9196BC70CFC
PRP: Verified
PRP without proof (not generated)
2008-07-21J FeitsmaF
Factor: 746125999
2008-07-21J FeitsmaF
Factor: 227173592287