Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
249229Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
23427527824.5old
571576499960631445.72008-07-21 09:14:57
792857219098791446.22008-08-26 20:13:06
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000245 / 1566
Estimated T-Level: 30.8
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 Kruse2DF8FC544F1E36023013
Verified2017-09-22Oliver Kruse2DF8FC544F1E36023013
Verified2017-11-06kkmrkkblmbrbk2DF8FC544F1E3602322967813
Verified2020-04-17Oliver Kruse93FD6F42EB20DEBA324912653
Verified2024-02-03Wentao Huang93FD6F42EB20DEBA31512853
History
DateUserTypeResult
2024-02-03Naegi MakotoCERT
PRP Certification
Proof certified good
2024-02-03Wentao HuangC-PRP
M249229/23427527/57157649996063/79285721909879 : 93FD6F42EB20DEBA
PRP proof power = 5
PRP: Verified
Proof certified good
2022-04-18Oliver KruseNF-PM1
B1=30000000, B2=10120247026890
2021-08-10Oliver KruseNF-PM1
B1=30000000, B2=3000000000, E=24
2020-04-17Oliver KruseC-PRP
M249229/23427527/57157649996063/79285721909879 : 93FD6F42EB20DEBA
PRP: Verified
PRP without proof (small exponent)
2017-11-06kkmrkkblmbrbkC-PRP
M249229/23427527/57157649996063/79285721909879 : 2DF8FC544F1E3602
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M249229/23427527/57157649996063/79285721909879 : 2DF8FC544F1E3602
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M249229/23427527/57157649996063/79285721909879 : 2DF8FC544F1E3602
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M249229/23427527/57157649996063/79285721909879 : 2DF8FC544F1E3602
PRP without proof (not generated)
2008-08-26-Anonymous-F
Factor: 79285721909879
2008-07-21J FeitsmaF
Factor: 57157649996063