Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
14831Composite, with 5 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
29663514.9old
38708911825.22008-08-26 19:58:44
11500022018073771650.02008-08-26 19:58:44
51325453649285887586892272.12008-08-29 02:24:35
563732971371776124395851932577756734112.12015-08-10 03:26:14
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001261 / 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 Kruse9E059A67525C1D315013
Verified2017-10-02kkmrkkblmbrbk9E059A67525C1D315013
Verified2017-12-07ATH9E059A67525C1D315529413
Verified2020-04-17Oliver Kruse6293DE424A5EF3FB51019553
Verified (Factored)2022-05-12Jorge Coveiro6293DE424A5EF3FB1232853
Verified2024-07-01kkmrkkblmbrbk6293DE424A5EF3FB51053053
P-1 factors
DateFactorB1B2
2022-03-1813204583192065601900313273615000000050000000
2024-03-075132545364928588758689100000000000122154521813133808
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M14831/1150002201807377/29663/38708911/5132545364928588758689/5637329713717761243958519325777567 : 6293DE424A5EF3FB
PRP: Verified
PRP without proof (small exponent)
2024-03-07-Anonymous-F-PM1
Factor: 5132545364928588758689 / (P-1, B1=100000000000, B2=122154521813133810)
2023-05-27JacobZNF-PM1
B1=7300000000, B2=30020805351537000
2022-05-12Jorge CoveiroC-PRP
M14831/29663 : 6293DE424A5EF3FB
PRP: Verified
PRP without proof (small exponent)
2022-03-18PrimeNRF-PM1
Factor: 1320458319206560190031327361 / (P-1, B1=50000000)
2021-08-27Seth_TrNF-PM1
B1=400000000
2021-08-02ViliamFNF-PM1
B1=250000000, B2=42750000000
2020-04-17Oliver KruseC-PRP
M14831/29663/38708911/1150002201807377/5132545364928588758689/5637329713717761243958519325777567 : 6293DE424A5EF3FB
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M14831/29663/38708911/1150002201807377/5132545364928588758689/5637329713717761243958519325777567 : 9E059A67525C1D31
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M14831/29663/38708911/1150002201807377/5132545364928588758689/5637329713717761243958519325777567 : 9E059A67525C1D31
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M14831/29663/38708911/1150002201807377/5132545364928588758689/5637329713717761243958519325777567 : 9E059A67525C1D31
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M14831/29663/38708911/1150002201807377/5132545364928588758689/5637329713717761243958519325777567 : 9E059A67525C1D31
PRP without proof (not generated)
2015-08-10BloodIceF-ECM
Factor: 5637329713717761243958519325777567
2008-08-29-Anonymous-F-ECM
Factor: 5132545364928588758689
2008-08-26-Anonymous-F-PM1
Factor: 1150002201807377
2008-08-26-Anonymous-F
Factor: 38708911