is 2 13389913 - 1
has 4030766 decimal digits
takes 5.941 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
Actual2672.219164.1791%3000002101291507.54778.8964%9.766867.3659%
Target2698.916265.2174%90000110000000.44032.7790%9.356566.1840%
Difference-2-6.6970-1.0383%+210000+199129150+7.1074+6.1174%+0.4103+1.1819%

Known prime factors (3 factors, 209.4 bits, 0.00156414% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
133899135049336192311238.87718855
32 × 5 × 419
-94192.957e-92.016e-52.746e-5
133899136793506259691239.30525368
23 × 3 × 7 × 151
2008-09-0881518.155e-91.016e-51.047e-5
13389913324800066305041318185220794030701088596740131.255121285353498951530971568222299391
67 × 593 × 1459 × 3163 × 21817 × 21863 × 284423 × 4875901
2022-07-0828442348759011.253e+100.34390.3724

4 Composite Factors:
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2022-06-30nordisweet16_30.8b14300000300000-
skipped known factor: 504933619231
skipped known factor: 679350625969
--0.193--2.169%
2022-07-07nordisweet16_30.8b1430000021012915040131.2557.54811.8815.108.896%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-09-08Will EdgingtonManual testing??39.305122.68508e-920.939.45959e-9


ECM factoring results:
No ECM results for M13389913


Lucas-Lehmer results:
No L-L results for M13389913


PRP results:
dateuseridcompidcofactorsres64PRP
2022-07-23g0b
504933619231
679350625969
3248000663050413181852207940307010885967
6DFA0FDE2B52C2__no


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:
2
this exponent TF target: 69
TF double-checked to: 67.9
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Last modified: 2023-10-02T12:12:48+00:00