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
276347Factored
FactorDigitsBitsDate
61901729825.9old
1243964966631236.92008-07-21 09:15:42
60298150873806118790092092582.32020-06-03 20:39:44
ECM
DigitsB1Curves
2550000280 / 280
30250000598 / 640
Estimated T-Level: 29.7
TF below 2^94 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-09-22Oliver Kruse30246E471F3B18CE2013
Verified (Factored)2017-10-12Oliver Kruse30246E471F3B18CE27792713
Verified (Factored)2017-11-06kkmrkkblmbrbk30246E471F3B18CE23807413
Verified (Factored)2020-04-17Oliver KruseE5E9314CBF4E457C212166353
Verified2020-06-04mnd9E5E9314CBF4E457C311325753
Verified2020-06-04Klaus NordmannE5E9314CBF4E457C3220253
History
DateUserTypeResult
2023-03-19Naegi MakotoNF-PM1
B1=2000000, B2=79396947630
2022-01-03Lisander ViaeneNF-PM1
B1=100000
2020-06-04Klaus NordmannC-PRP
M276347/61901729/124396496663/6029815087380611879009209 : E5E9314CBF4E457C
PRP: Verified
PRP without proof (small exponent)
2020-06-04mnd9C-PRP
M276347/61901729/124396496663/6029815087380611879009209 : E5E9314CBF4E457C
PRP: Verified
PRP without proof (small exponent)
2020-06-03nordiF-ECM
Factor: 6029815087380611879009209 / (ECM curve 16, B1=250000, B2=25000000, Sigma=1972630685280391)
2020-04-17Oliver KruseC-PRP
M276347/61901729/124396496663 : E5E9314CBF4E457C
PRP: Verified
PRP without proof (small exponent)
2017-11-06kkmrkkblmbrbkC-PRP
M276347/61901729/124396496663 : 30246E471F3B18CE
PRP: Verified
PRP without proof (small exponent)
2017-10-12Oliver KruseC-PRP
M276347/61901729/124396496663 : 30246E471F3B18CE
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M276347/61901729/124396496663 : 30246E471F3B18CE
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M276347/61901729/124396496663 : 30246E471F3B18CE
PRP without proof (not generated)
2008-07-21J FeitsmaF
Factor: 124396496663