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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
326737Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
10246556801641499211959.82008-06-22 23:17:50
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000165 / 1566
Estimated T-Level: 30.5
TF below 2^96 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David Slowinski4120
Verified (Factored)Unknown04120
Verified (Factored)Guillermo Ballester ValorECA1173F655604120
Verified (Factored)Eivind TrielECA1173F6556041255392
Verified (Factored)2002-01-22Dennis PopeECA1173F65560412188445
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver KruseF66C6E522AB888471013
Verified2017-10-13Oliver KruseF66C6E522AB88847112992013
Verified2017-12-12ATHF66C6E522AB88847121216813
Verified2020-04-18Oliver Kruse4654DCF136E6B53D126165053
Verified2024-09-05kkmrkkblmbrbk4654DCF136E6B53D115342453
History
DateUserTypeResult
2024-09-23yuriy_5-1NF-PM1
B1=12000002, B2=2107215910800
2024-09-05Jon PaceCERT
PRP Certification
Proof certified good
2024-09-05kkmrkkblmbrbkC-PRP
M326737/1024655680164149921 : 4654DCF136E6B53D
PRP proof power = 5
PRP: Verified
Proof certified good
2023-03-23Denial140NF-PM1
B1=1000000, B2=20563492950
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2020-04-18Oliver KruseC-PRP
M326737/1024655680164149921 : 4654DCF136E6B53D
PRP: Verified
PRP without proof (small exponent)
2017-12-12ATHC-PRP
M326737/1024655680164149921 : F66C6E522AB88847
PRP: Verified
PRP without proof (small exponent)
2017-10-13Oliver KruseC-PRP
M326737/1024655680164149921 : F66C6E522AB88847
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M326737/1024655680164149921 : F66C6E522AB88847
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M326737/1024655680164149921 : F66C6E522AB88847
PRP without proof (not generated)
2008-06-22Sturle SundeF-ECM
Factor: 1024655680164149921