is 2 65679839 - 1
has 19771602 decimal digits
takes 159.319 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2670.452461.1940%----0.452461.1940%0.0000%
PrimeNet2703.638162.8571%280000130000003.42245.3059%7.060564.8279%1.9708%
GPU7227458.250264.8649%450000150000004.37103.9186%62.621266.2417%1.3768%
Difference-7-57.7978-3.6708%-450000-15000000-4.3710-3.9186%-62.1688-5.0476%-5.0476%

Known prime factors (3 factors, 135.0 bits, 0.00020550% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
6567983964366242231032.58449
72
-49498.804e-120.00020.0004
656798392984491884171238.1192272
25 × 71
2008-09-1132718.317e-100.00010.0002
65679839222892855681434721132064.273169681335304
23 × 13 × 107 × 15248143
2017-08-29107152481430.09712.92245.4575

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
6567983919210052754995532249912270.702
656798391434677554012765897418607931993096.857
65679839665221918820717000154132211512131102.392
656798394281783516351966637419982126163342317598341134.975
P-1 results:
No P-1 results for M65679839


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-09-11T08:25:00Will EdgingtonManual testing??38.119122.74181e-10328.35.65027e-10
2017-08-29T11:21:59TJAOIManual testing264265*64.273200.043328.20.088


ECM factoring results:
No ECM results for M65679839


Lucas-Lehmer results:
No L-L results for M65679839


PRP results:
No PRP results for M65679839


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
106
107
108
TF factor-bounds graph:
267
265
2
230
240
250
260
270
280
290
2100
Last modified: 2017-08-29T11:21:59+00:00