Marin Mersenne 2^P-1
Username
Password
Forgot password?
Black
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
28163Factored
FactorDigitsBitsDate
8843183723.1old
4407789105131651287692168.62008-08-29 02:24:45
191400909546032095615612374.02010-04-18 20:58:34
7903233218191636954702748225744397735115.92018-03-06 01:06:49
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
403000000660 / 4588
Estimated T-Level: 35.7
TF below 2^114 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-09-21Oliver Kruse71945A3D11E85AEA3013
Verified (Factored)2017-10-02kkmrkkblmbrbk71945A3D11E85AEA3013
Verified (Factored)2017-12-07ATH71945A3D11E85AEA31123413
Verified2018-03-06ATH39D3A15EF45068744721853
Verified2018-03-07Oliver Kruse39D3A15EF450687442671453
History
DateUserTypeResult
2023-02-17nordiNF-PM1
B1=3000000000, B2=925584566816910
2022-10-22nordiNF-PM1
B1=3000000000
2018-03-07Oliver KruseC-PRP
M28163/8843183/440778910513165128769/19140090954603209561561/79032332181916369547027482257443977 : 39D3A15EF4506874
PRP: Verified
PRP without proof (small exponent)
2018-03-06ATHC-PRP
M28163/8843183/440778910513165128769/19140090954603209561561/79032332181916369547027482257443977 : 39D3A15EF4506874
PRP: Verified
PRP without proof (small exponent)
2018-03-06nordiF-ECM
Factor: 79032332181916369547027482257443977 / (ECM curve 60, B1=3000000, B2=300000000)
2017-12-07ATHC-PRP
M28163/8843183/440778910513165128769/19140090954603209561561 : 71945A3D11E85AEA
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M28163/8843183/440778910513165128769/19140090954603209561561 : 71945A3D11E85AEA
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M28163/8843183/440778910513165128769/19140090954603209561561 : 71945A3D11E85AEA
PRP without proof (not generated)
2016-12-28kkmrkkblmbrbkNF-PM1
B1=500000000, B2=10000000000, E=12
2010-04-18James HintzF-ECM
Factor: 19140090954603209561561
2008-08-29-Anonymous-F-ECM
Factor: 440778910513165128769