is 2 13278319 - 1
has 3997173 decimal digits
takes 5.891 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2672.237864.1791%----2.237864.1791%0.0000%
PrimeNet2640.268162.5000%6000017000000.09614.3505%0.364164.1314%1.6314%
GPU722684.488964.7059%9000024000000.13893.1787%4.627865.8278%1.1219%
Difference-1-2.2511-0.5268%-90000-2400000-0.1389-3.1787%-2.3900-1.6487%-1.6487%

Known prime factors (3 factors, 170.1 bits, 0.00128069% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
132783191166367540971236.7634392
23 × 32 × 61
-9611.345e-97.613e-61.178e-5
1327831940617864613173950871961.817152948067497
29 × 97 × 601 × 90469
2016-06-02601904690.03040.00350.0059
1327831932788174585613210503212271.474123465080879640
23 × 33 × 5 × 19 × 797 × 7549331
2021-08-18797754933151.9080.26510.4942

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
132783194737535886832008134310149214393098.580
1327831938243062564316729074176023991513733108.237
132783191331785636231548293298532689358256517292741133.290
1327831915533515376305579203904099029959505414411627807319
19
52170.054
P-1 results:
Exponent "13278319" not found


P+1 Factoring results:
dateuseridcompidb1b2startfactorSmoothdigitsbits*ghz-days
2021-08-18T02:18:02ATHec2-P_11000001000000027P-12271.4740.403


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2016-06-02T16:28:40TJAOIManual testing26126261.817190.00712.220.015


ECM factoring results:
Exponent "13278319" not found


Lucas-Lehmer results:
Exponent "13278319" not found


PRP results:
Exponent "13278319" not found


P-1 factor-bounds graph:
B1 = 100000, B2 = 10000000 (P-1 stage 2)
B1 = 100000 (P-1 stage 1)
100
101
102
103
104
105
100
101
102
103
104
105
106
107
TF factor-bounds graph:
267
262
230
240
250
260
270
280
290
2100
Last modified: 2021-08-18T02:18:02+00:00