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
252449Factored
FactorDigitsBitsDate
391295951928.5old
1545553365771237.22008-07-21 09:15:01
94583286594994871653.12014-08-22 10:16:06
ECM
DigitsB1Curves
2550000280 / 280
30250000434 / 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 Kruse4498DAD22D34EDD83013
Verified2017-10-12Oliver Kruse4498DAD22D34EDD8319778613
Verified2017-11-06kkmrkkblmbrbk4498DAD22D34EDD8312063013
Verified2020-04-17Oliver KruseE94FE14AC5975A3033659953
Verified2024-02-03Wentao HuangE94FE14AC5975A303353953
History
DateUserTypeResult
2024-02-03Naegi MakotoCERT
PRP Certification
Proof certified good
2024-02-03Wentao HuangC-PRP
M252449/391295951/154555336577/9458328659499487 : E94FE14AC5975A30
PRP proof power = 5
PRP: Verified
Proof certified good
2022-04-22Oliver KruseNF-PM1
B1=30000000, B2=10120247026890
2021-08-23Oliver KruseNF-PM1
B1=30000000, B2=3000000000, E=24
2021-06-06ViliamFNF-PM1
B1=50000000, B2=7150000000
2020-04-17Oliver KruseC-PRP
M252449/391295951/154555336577/9458328659499487 : E94FE14AC5975A30
PRP: Verified
PRP without proof (small exponent)
2017-11-06kkmrkkblmbrbkC-PRP
M252449/391295951/154555336577/9458328659499487 : 4498DAD22D34EDD8
PRP: Verified
PRP without proof (small exponent)
2017-10-12Oliver KruseC-PRP
M252449/391295951/154555336577/9458328659499487 : 4498DAD22D34EDD8
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M252449/391295951/154555336577/9458328659499487 : 4498DAD22D34EDD8
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M252449/391295951/154555336577/9458328659499487 : 4498DAD22D34EDD8
PRP without proof (not generated)
2014-08-22TJAOIF
Factor: 9458328659499487
2008-07-21J FeitsmaF
Factor: 154555336577