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
13463Composite, with 4 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
26927514.7old
54971313831032.42008-08-26 19:58:40
1222397147802518471856.82008-08-26 19:58:40
257345182663817606044873512684.42008-08-29 02:24:32
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001334 / 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 Kruse7636DA6784D2AC394013
Verified2017-10-02kkmrkkblmbrbk7636DA6784D2AC394013
Verified2017-12-07ATH7636DA6784D2AC394669213
Verified2020-04-17Oliver KruseFB8C29C42F4281AA4929953
Verified (Factored)2022-05-12Jorge CoveiroFB8C29C42F4281AA1876953
Verified2024-07-01kkmrkkblmbrbkFB8C29C42F4281AA4407953
P-1 factors
DateFactorB1B2
2024-01-2925734518266381760604487351100000000000122154521813133808
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M13463/122239714780251847/25734518266381760604487351/26927/5497131383 : FB8C29C42F4281AA
PRP: Verified
PRP without proof (small exponent)
2024-01-29-Anonymous-F-PM1
Factor: 25734518266381760604487351 / (P-1, B1=100000000000, B2=122154521813133810)
2023-05-19JacobZNF-PM1
B1=8200000000, B2=35024272926292650
2022-05-12Jorge CoveiroC-PRP
M13463/26927 : FB8C29C42F4281AA
PRP: Verified
PRP without proof (small exponent)
2022-02-05JossNF-PM1
B1=1000000, B2=2389799412000
2020-04-17Oliver KruseC-PRP
M13463/26927/5497131383/122239714780251847/25734518266381760604487351 : FB8C29C42F4281AA
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M13463/26927/5497131383/122239714780251847/25734518266381760604487351 : 7636DA6784D2AC39
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M13463/26927/5497131383/122239714780251847/25734518266381760604487351 : 7636DA6784D2AC39
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M13463/26927/5497131383/122239714780251847/25734518266381760604487351 : 7636DA6784D2AC39
PRP without proof (not generated)
2008-08-29-Anonymous-F-ECM
Factor: 25734518266381760604487351
2008-08-26-Anonymous-F-ECM
Factor: 122239714780251847
2008-08-26-Anonymous-F
Factor: 5497131383