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
5449Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
2517439721.3old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000011078 / 16550
Estimated T-Level: 48.3
TF below 2^156 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver KruseDB8A4713FBC5C0411013
Verified2017-10-12kkmrkkblmbrbkDB8A4713FBC5C0411483713
Verified2020-04-17Oliver KruseA758E3D01DF947B41134553
Verified2024-02-03Wentao HuangA758E3D01DF947B4133553
History
DateUserTypeResult
2024-06-10mikrNF-PM1
B1=500000000000, B2=1177314837267769200
2024-02-03Wentao HuangC-PRP
M5449/2517439 : A758E3D01DF947B4
PRP: Verified
PRP without proof (small exponent)
2023-07-10-Anonymous-NF-PM1
B1=46000000000, B2=193133522175293700
2021-12-16Oliver KruseNF-PM1
B1=1000000000, B2=1002849399191640
2020-04-17Oliver KruseC-PRP
M5449/2517439 : A758E3D01DF947B4
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M5449/2517439 : DB8A4713FBC5C041
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M5449/2517439 : DB8A4713FBC5C041
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M5449/2517439 : DB8A4713FBC5C041
PRP without proof (not generated)