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
10253Factored
FactorDigitsBitsDate
12936825291030.3old
20013583742024754703932270.82008-08-29 02:24:25
1544362346021446149739372477.02008-08-29 02:24:25
368231959704460831228686771108731101.52008-10-16 23:57:24
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001554 / 9201
Estimated T-Level: 40.8
TF below 2^131 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse2B9BEA1BF6A68DD24013
Verified2017-10-02kkmrkkblmbrbk2B9BEA1BF6A68DD24013
Verified2017-10-12kkmrkkblmbrbk2B9BEA1BF6A68DD246513
Unverified2020-04-17Oliver Kruse9F46383B65276A__4809053
P-1 factors
DateFactorB1B2
2022-04-022001358374202475470393100000000000121968084023145360
2022-04-02154436234602144614973937100000000001011837229839506048
History
DateUserTypeResult
2022-04-02Anton RepkoF-PM1
Factor: 154436234602144614973937 / (P-1, B1=10000000000, B2=1011837229839506070)
2022-04-02-Anonymous-F-PM1
Factor: 2001358374202475470393 / (P-1, B1=100000000000, B2=121968084023145360)
2021-08-01ViliamFNF-PM1
B1=250000000, B2=40250000000
2020-04-17Oliver KruseC-PRP
M10253/1293682529/2001358374202475470393/154436234602144614973937/3682319597044608312286867711087 : 9F46383B65276A__
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M10253/1293682529/2001358374202475470393/154436234602144614973937/3682319597044608312286867711087 : 2B9BEA1BF6A68DD2
PRP without proof (not generated)
2017-10-02kkmrkkblmbrbkC-PRP
M10253/1293682529/2001358374202475470393/154436234602144614973937/3682319597044608312286867711087 : 2B9BEA1BF6A68DD2
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M10253/known_factors : 2B9BEA1BF6A68DD2
PRP without proof (not generated)
2016-09-07kkmrkkblmbrbkNF-PM1
B1=100000000, B2=10000000000, E=12
2008-10-16-Anonymous-F-ECM
Factor: 3682319597044608312286867711087
2008-08-29-Anonymous-F-ECM
Factor: 154436234602144614973937
2008-08-29-Anonymous-F-ECM
Factor: 2001358374202475470393