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
12049Composite, with 4 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
265079618.0old
38194366091031.82008-08-26 19:58:36
51959593553994971652.22008-08-29 02:24:29
11102528936330165345101132579.92008-10-16 23:57:25
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001342 / 9201
Estimated T-Level: 40.7
TF below 2^130 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse5F6EA544FC8E367C4013
Verified2017-10-02kkmrkkblmbrbk5F6EA544FC8E367C4013
Verified2017-12-07ATH5F6EA544FC8E367C4881213
Verified2020-04-17Oliver KruseD57D9C05EFDE856C41162453
Verified2023-05-19-Anonymous-D57D9C05EFDE856C4426653
History
DateUserTypeResult
2023-05-19-Anonymous-C-PRP
M12049/265079/3819436609/5195959355399497/1110252893633016534510113 : D57D9C05EFDE856C
PRP: Verified
PRP without proof (small exponent)
2023-04-06-Anonymous-NF-PM1
B1=100000000000, B2=122192573512709700
2020-04-17Oliver KruseC-PRP
M12049/265079/3819436609/5195959355399497/1110252893633016534510113 : D57D9C05EFDE856C
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M12049/265079/3819436609/5195959355399497/1110252893633016534510113 : 5F6EA544FC8E367C
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M12049/265079/3819436609/5195959355399497/1110252893633016534510113 : 5F6EA544FC8E367C
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M12049/265079/3819436609/5195959355399497/1110252893633016534510113 : 5F6EA544FC8E367C
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M12049/265079/3819436609/5195959355399497/1110252893633016534510113 : 5F6EA544FC8E367C
PRP without proof (not generated)
2016-09-08kkmrkkblmbrbkNF-PM1
B1=100000000, B2=10000000000, E=12
2008-10-16-Anonymous-F-ECM
Factor: 1110252893633016534510113
2008-08-29-Anonymous-F
Factor: 5195959355399497
2008-08-26-Anonymous-F
Factor: 3819436609