is 2 16924871 - 1
has 5094894 decimal digits
takes 9.255 GHz-days to do one PRP test
Last-known PrimeNet details:
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2671.755662.6866%----1.755662.6866%1.1481%
PrimeNet2650.431161.5385%8000024000000.16364.5274%0.594766.0658%4.5274%
GPU722697.053963.7681%12000032000000.22823.2932%7.282167.0613%3.2932%
Difference-2-5.2983-1.0815%-120000-3200000-0.2282-3.2932%-5.5265-4.3748%-4.3748%

Known prime factors (3 factors, 143.7 bits, 0.00084891% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1692487133849743825.0131
1
-112.642e-137.929e-71.614e-6
1692487191858383701317431653.028271371001
11 × 1777 × 13883
2014-09-011777138839.301e-50.00190.0029
16924871573262117537983706012065.6361693549444300
22 × 52 × 7 × 29 × 47 × 53 × 107 × 313
2019-02-211073130.77899.374e-50.0002

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
169248713109382680684983766920492478.041
1692487119404775350296541186626055432890.648
1692487152658931554233839302522641910808754336118.664
169248711782491299765406022293690680361905255205144944143.677
P-1 results:
Exponent "16924871" not found


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2014-09-01T11:42:00TJAOIManual testing??53.028162.21131e-519.274.60407e-5
2019-02-21T12:07:54TJAOIManual testing26526665.636200.34818.840.708


ECM factoring results:
Exponent "16924871" not found


Lucas-Lehmer results:
Exponent "16924871" not found


PRP results:
Exponent "16924871" not found


P-1 factor-bounds graph:
100
101
102
103
104
100
101
102
103
104
105
TF factor-bounds graph:
267
266
2
220
230
240
250
260
270
280
290
2100
Last modified: 2019-02-21T12:07:54+00:00