is 2 13493411 - 1
has 4061922 decimal digits
takes 5.987 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
Actual2672.202164.1791 %3000002101291507.54778.9038 %9.749867.3685 %
Target2698.847865.2174 %90000110000000.44032.7822 %9.288166.1851 %
Difference-2-6.6457-1.0383 %+210000+199129150+7.1074+6.1216%+0.4617+1.1834 %

Known prime factors (2 factors, 76.2 bits, 0.00056499% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1349341126986823824.6861
1
-111.657e-136.433e-71.309e-6
1349341132984110199765511651.551122223025
52 × 37 × 229 × 577
2014-07-012295772.668e-50.00020.0003

1 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2022-07-06nordisweet16_30.8b14300000300000
skipped known factor: 26986823
skipped known factor: 3298411019976551
--0.2081.705%
2022-07-15nordisweet16_30.8b14300000210129150
skipped known factor: 26986823
skipped known factor: 3298411019976551
--8.5327.443%


Trial Factoring results:
57585960616263646566676869
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2014-07-01TJAOIManual testing??
51.551
16
1.18810e-5


ECM factoring results:
No ECM results for M13493411


Lucas-Lehmer results:
No L-L results for M13493411


PRP results:
dateuseridcompidcofactorsres64
2022-08-17RichD0Linux-7
26986823
3298411019976551
9C6138DA7212BE33


CERT results:
dateuseridcompid
2022-08-17John Aireywilberforce


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