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
1970519Factored
FactorDigitsBitsDate
3941039721.9old
2295788787933531547.72014-03-13 11:27:04
26511584309387511651.22014-06-20 11:43:55
36664924059801931184712271.62021-08-12 16:25:29
ECM
DigitsB1Curves
2550000280 / 280
3025000056 / 640
Estimated T-Level: 25.4
TF below 2^80 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-05Oliver Kruse83FDE117D729E0B63013
Verified (Factored)2017-11-15kkmrkkblmbrbk83FDE117D729E0B63194892713
Verified2021-08-12_p95holder_C38E5826820FFE33459519553
Verified2021-08-18LaurVC38E5826820FFE33498214653
History
DateUserTypeResult
2023-10-16USAFSSNF-PM1
B1=672000, B2=647447724
2022-08-12USAFSSNF-PM1
B1=132000, B2=134381520
2021-08-18Jim DonovanCERT
PRP Certification
Proof certified good
2021-08-18LaurVC-PRP
M1970519/3941039/229578878793353/2651158430938751/3666492405980193118471 : C38E5826820FFE33
PRP proof power = 7
PRP: Verified
Proof certified good
2021-08-12_p95holder_C-PRP
M1970519/3941039/229578878793353/2651158430938751/3666492405980193118471 : C38E5826820FFE33
PRP: Verified
PRP without proof (not generated)
2021-08-12_p95holder_F-ECM
Factor: 3666492405980193118471 / (ECM curve 7, B1=50000, B2=5000000)
2017-11-15kkmrkkblmbrbkC-PRP
M1970519/3941039/229578878793353/2651158430938751 : 83FDE117D729E0B6
PRP: Verified
PRP without proof (not generated)
2017-10-05Oliver KruseC-PRP
M1970519/3941039/229578878793353/2651158430938751 : 83FDE117D729E0B6
PRP: Verified
PRP without proof (not generated)
2017-10-05Oliver KruseC-PRP
M1970519/3941039/229578878793353/2651158430938751 : 83FDE117D729E0B6
PRP without proof (not generated)
2014-06-20TJAOIF
Factor: 2651158430938751
2014-03-13TJAOIF
Factor: 229578878793353