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
242923Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
19919687824.2old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000160 / 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 Kruse0C378E0DD22F4C4A1013
Verified2017-10-12kkmrkkblmbrbk0C378E0DD22F4C4A15642313
Verified2020-04-17Oliver KruseEC01F189DFA8B4D6111038353
Verified2024-02-03Wentao HuangEC01F189DFA8B4D6117809253
History
DateUserTypeResult
2024-02-03Naegi MakotoCERT
PRP Certification
Proof certified good
2024-02-03Wentao HuangC-PRP
M242923/19919687 : EC01F189DFA8B4D6
PRP proof power = 5
PRP: Verified
Proof certified good
2022-04-10Oliver KruseNF-PM1
B1=30000000, B2=10120247026890
2021-07-22Oliver KruseNF-PM1
B1=30000000, B2=3000000000, E=24
2020-04-17Oliver KruseC-PRP
M242923/19919687 : EC01F189DFA8B4D6
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M242923/19919687 : 0C378E0DD22F4C4A
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M242923/19919687 : 0C378E0DD22F4C4A
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M242923/19919687 : 0C378E0DD22F4C4A
PRP without proof (not generated)