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
252731Factored
FactorDigitsBitsDate
4549159722.1old
ECM
DigitsB1Curves
2550000280 / 280
30250000437 / 640
Estimated T-Level: 28.4
TF below 2^89 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver Kruse0D77B42D26536CE91013
Verified2017-10-12Oliver Kruse0D77B42D26536CE9122762413
Verified2017-11-06kkmrkkblmbrbk0D77B42D26536CE9119599813
Verified2020-04-17Oliver Kruse02270D1338DA556815918753
Verified2024-02-03Wentao Huang02270D1338DA5568115795853
History
DateUserTypeResult
2024-02-03curtiscCERT
PRP Certification
Proof certified good
2024-02-03Wentao HuangC-PRP
M252731/4549159 : 02270D1338DA5568
PRP proof power = 5
PRP: Verified
Proof certified good
2022-04-23Ruslan BorisovF-ECM
Factor: 4549159 / (ECM curve 1, B1=250000, B2=32250000)
2022-04-22Oliver KruseNF-PM1
B1=30000000, B2=10120247026890
2021-08-24Oliver KruseNF-PM1
B1=30000000, B2=3000000000, E=24
2020-04-17Oliver KruseC-PRP
M252731/4549159 : 02270D1338DA5568
PRP: Verified
PRP without proof (small exponent)
2017-11-06kkmrkkblmbrbkC-PRP
M252731/4549159 : 0D77B42D26536CE9
PRP: Verified
PRP without proof (small exponent)
2017-10-12Oliver KruseC-PRP
M252731/4549159 : 0D77B42D26536CE9
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M252731/4549159 : 0D77B42D26536CE9
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M252731/4549159 : 0D77B42D26536CE9
PRP without proof (not generated)