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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
231529Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
14817857823.8old
1204538883671236.82008-07-21 09:14:29
202934489990373771754.22009-01-22 21:23:40
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000165 / 1566
Estimated T-Level: 30.5
TF below 2^96 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver Kruse1042B6B379A65EC43013
Verified2017-10-12kkmrkkblmbrbk1042B6B379A65EC439900713
Verified2020-04-17Oliver Kruse8EE52C1F77F50372322240553
Verified2024-02-03Wentao Huang8EE52C1F77F50372311528753
History
DateUserTypeResult
2024-02-03Naegi MakotoCERT
PRP Certification
Proof certified good
2024-02-03Wentao HuangC-PRP
M231529/14817857/120453888367/20293448999037377 : 8EE52C1F77F50372
PRP proof power = 5
PRP: Verified
Proof certified good
2022-03-25Oliver KruseNF-PM1
B1=30000000, B2=10070832992220
2021-07-13Oliver KruseNF-PM1
B1=30000000, B2=3000000000, E=24
2020-04-17Oliver KruseC-PRP
M231529/14817857/120453888367/20293448999037377 : 8EE52C1F77F50372
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M231529/14817857/120453888367/20293448999037377 : 1042B6B379A65EC4
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M231529/14817857/120453888367/20293448999037377 : 1042B6B379A65EC4
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M231529/14817857/120453888367/20293448999037377 : 1042B6B379A65EC4
PRP without proof (not generated)
2009-01-22Matthias WurtingerF-ECM
Factor: 20293448999037377
2008-07-21J FeitsmaF
Factor: 120453888367