is 2 13517731 - 1
has 4069243 decimal digits
takes 5.998 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2672.198164.1791 %3000002101291507.54778.9055 %9.745867.3691 %
Target2698.831965.2174 %90000110000000.44032.7829 %9.272266.1854 %
Difference-2-6.6337-1.0383 %+210000+199129150+7.1074+6.1226%+0.4736+1.1838 %

Known prime factors (1 factor, 27.9 bits, 0.00020609% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
13517731243319159927.8589
32
-991.325e-125.790e-61.178e-5

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2022-07-09nordisweet16_30.8b14300000300000
skipped known factor: 243319159
--0.2081.705%
2022-07-24nordisweet16_30.8b14300000210129150
skipped known factor: 243319159
--8.5327.444%


Trial Factoring results:
57585960616263646566676869
No TF results for M13517731


ECM factoring results:
No ECM results for M13517731


Lucas-Lehmer results:
No L-L results for M13517731


PRP results:
dateuseridcompidcofactorsres64
2022-08-16LordJuliusDarkTower
243319159
5F0C633C731533D8


CERT results:
dateuseridcompid
2022-08-16Mike_2P-1Vostro_i7


P-1 factor-bounds graph:
B1 = 300000, B2 = 210129150 (P-1 stage 2)
B1 = 300000 (P-1 stage 1)
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TF factor-bounds graph:
this exponent TF target: 69
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00