is 2 4670509 - 1
has 1405964 decimal digits
takes 0.615 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
Actual2676.362065.6716%----6.362065.6716%0.0000%
PrimeNet2610.065862.2951%200004000000.00783.1186%0.073563.4710%1.1759%
GPU722651.562164.6154%300006000000.01172.2303%1.573765.4046%0.7892%
Difference+2+4.8000+1.0563%-30000-600000-0.0117-2.2303%+4.7883+0.2671%+0.2671%

Known prime factors (2 factors, 124.5 bits, 0.00266567% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
46705093917821352422331548.47741942124
22 × 34 × 7 × 18493
-81184931.109e-50.00020.0004
4670509767938056078208110362232376.0238221138810333179
3 × 23 × 292469 × 407383139
2019-03-222924694073831396,198.24.29037.9144

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
46705093008644113440900395900226779584240595938124.500
P-1 results:
No P-1 results for M4670509


Trial Factoring results:
No TF results for M4670509


ECM factoring results:

Old Calculation Method

Total ECM effort:0.197 GHz-days
Estimated T-Level:0.050
DigitsB1CurvesCompleteFacMiss
20110001 / 1000.01099.000%
25500001 / 2800.00499.643%

New Calculation Method

Total ECM effort:0.197 GHz-days
Estimated T-Level:0.050
DigitsB1CompleteFacMiss
20110000.03896.227%
25500000.00499.645%


ECM Summary

B1B2factorcurvesGHz-days
50000500000010.197


Lucas-Lehmer results:
No L-L results for M4670509


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-20T16:59:07kkmrkkblmbrbkManual testing
391782135242233
A6C6019E5A3BD9__no
2018-03-05T09:14:22ATHec2-1xf
391782135242233
A6C6019E5A3BD9__no
2019-03-23T11:19:17artorollofourth
391782135242233
76793805607820811036223
43DDC47B32352ADBno
2019-03-24T08:50:37kkmrkkblmbrbkc5.large
391782135242233
76793805607820811036223
43DDC47B32352ADBno


P-1 factor-bounds graph:
100
101
102
103
104
105
106
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
267
240
250
260
270
280
290
2100
Last modified: 2019-03-24T08:50:37+00:00