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
1840259Factored
FactorDigitsBitsDate
3680519721.8old
10524930301405103356631772579.82019-01-10 01:05:10
340648200743411710601619373932994.82023-09-11 09:37:14
ECM
DigitsB1Curves
2550000280 / 280
30250000106 / 640
Estimated T-Level: 25.8
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-04Oliver Kruse4B56309168E6C70F1013
Verified (Factored)2017-11-06ATH4B56309168E6C70F1135895513
Verified (Factored)2019-01-10treborF03321B8D1E205AE2168454753
Verified (Factored)2019-01-14Chang Chia-TcheF03321B8D1E205AE2131530053
Verified2023-09-11Naegi MakotoF03321B8D1E205AE3165877653
History
DateUserTypeResult
2023-09-11Stefano GibelliniCERT
PRP Certification
Proof certified good
2023-09-11Naegi MakotoC-PRP
M1840259/3680519/1052493030140510335663177/34064820074341171060161937393 : F03321B8D1E205AE
PRP proof power = 7
PRP: Verified
Proof certified good
2023-09-11TJAOIF-ECM
Factor: 34064820074341171060161937393 / (ECM curve 7, B1=250000, B2=40000000, Sigma=968470256876110)
2022-04-03JossNF-PM1
B1=1000000, B2=188329050
2019-01-14Chang Chia-TcheC-PRP
M1840259/3680519/1052493030140510335663177 : F03321B8D1E205AE
PRP: Verified (Factored)
PRP without proof (not generated)
2019-01-10treborC-PRP
M1840259/3680519/1052493030140510335663177 : F03321B8D1E205AE
PRP: Verified (Factored)
PRP without proof (not generated)
2019-01-10Chang Chia-TcheF-ECM
Factor: 1052493030140510335663177 / (ECM curve 3, B1=50000, B2=5000000)
2017-11-06ATHC-PRP
M1840259/3680519 : 4B56309168E6C70F
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-04Oliver KruseC-PRP
M1840259/3680519 : 4B56309168E6C70F
PRP: Verified (Factored)
PRP without proof (not generated)