is 2 13513987 - 1
has 4068116 decimal digits
takes 5.996 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 PRP tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP69F6173A8C9E636APRP-tested

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2672.198864.1791 %3000002101291507.54778.9052 %9.746467.3690 %
Target2698.834365.2174 %90000110000000.44032.7828 %9.274666.1853 %
Difference-2-6.6356-1.0383 %+210000+199129150+7.1074+6.1224%+0.4718+1.1837 %

Known prime factors (3 factors, 203.5 bits, 0.00150588% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1351398738111875857671341.793141009
3 × 11 × 4273
-1142733.298e-80.00020.0003
1351398720162503648371934892272332580.73874598649711487568
24 × 32 × 1087 × 9497 × 50182523
2022-07-2494975018252324,6611.76473.2852
1351398723739841697318578844113512580.97487834336740588025
32 × 52 × 7 × 17 × 104543 × 31379057
2022-07-241045433137905726,7671.16352.0542

4 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2022-07-08nordisweet16_30.8b14300000300000
skipped known factor: 3811187585767
--0.2081.705%
2022-07-24nordisweet16_30.8b14300000210129150249161.7128.5327.444%


Trial Factoring results:
57585960616263646566676869
No TF results for M13513987


ECM factoring results:
No ECM results for M13513987


Lucas-Lehmer results:
No L-L results for M13513987


PRP results:
dateuseridcompidcofactorsres64
2022-08-16XZT800G2Mini17
3811187585767
2016250364837193489227233
2373984169731857884411351
69F6173A8C9E636A


CERT results:
dateuseridcompid
2022-08-16Kevin JagetPokey


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