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
172223Factored
FactorDigitsBitsDate
17911193824.1old
114790018393971291753.32009-03-05 15:10:33
220858754883186802632064.32008-08-26 20:12:45
325004296026613614620610609154152025737121.32017-05-01 06:22:11
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000171 / 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 KruseD52B3FF00A8E6C2C4013
Verified2017-10-12kkmrkkblmbrbkD52B3FF00A8E6C2C413852913
Verified2020-04-17Oliver KruseCBD3BD9DE352E3374400153
Verified2024-02-03Wentao HuangCBD3BD9DE352E337416941753
P-1 factors
DateFactorB1B2
2017-05-0132500429602661361462061060915415202571000000002000000000
History
DateUserTypeResult
2024-02-03slaurCERT
PRP Certification
Proof certified good
2024-02-03Wentao HuangC-PRP
M172223/17911193/22085875488318680263/11479001839397129/3250042960266136146206106091541520257 : CBD3BD9DE352E337
PRP proof power = 5
PRP: Verified
Proof certified good
2021-07-08ATHNF-PP1
Start=2/7, B1=15000000, B2=1500000000
2020-04-17Oliver KruseC-PRP
M172223/17911193/11479001839397129/22085875488318680263/3250042960266136146206106091541520257 : CBD3BD9DE352E337
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M172223/17911193/22085875488318680263/11479001839397129/3250042960266136146206106091541520257 : D52B3FF00A8E6C2C
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M172223/known_factors : D52B3FF00A8E6C2C
PRP without proof (not generated)
2017-05-01kkmrkkblmbrbkF-PM1
Factor: 3250042960266136146206106091541520257 / (P-1, B1=100000000, B2=2000000000, E=12)
2009-03-05-Anonymous-F
Factor: 11479001839397129
2008-08-26-Anonymous-F-ECM
Factor: 22085875488318680263