is 2 4659181 - 1
has 1402554 decimal digits
takes 0.613 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
Actual2676.377565.6716%----6.377565.6716%0.0000%
PrimeNet2610.065962.2951%200004000000.00783.1173%0.073763.4705%1.1754%
GPU722651.565964.6154%300006000000.01172.2293%1.577565.4042%0.7888%
Difference+2+4.8116+1.0563%-30000-600000-0.0117-2.2293%+4.8000+0.2674%+0.2674%

Known prime factors (2 factors, 104.0 bits, 0.00223228% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
46591812344872613691237.77125164
22 × 33 × 233
-272335.685e-97.297e-61.049e-5
4659181868437503646373139772066.2359319636902348
22 × 36 × 67 × 83 × 574723
2019-03-177295747235.57760.00610.0112

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
46591812036375319001689889741491585451332104.006
P-1 results:
No P-1 results for M4659181


Trial Factoring results:
No TF results for M4659181


ECM factoring results:

Old Calculation Method

Total ECM effort:0.590 GHz-days
Estimated T-Level:0.150
DigitsB1CurvesCompleteFacMiss
20110003 / 1000.03097.030%
25500003 / 2800.01198.932%

New Calculation Method

Total ECM effort:0.590 GHz-days
Estimated T-Level:0.150
DigitsB1CompleteFacMiss
20110000.11589.102%
25500000.01198.938%


ECM Summary

B1B2factorcurvesGHz-days
50000500000030.590


Lucas-Lehmer results:
No L-L results for M4659181


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-20T06:15:21kkmrkkblmbrbkManual testing
234487261369
75D411BA46C6DF__no
2018-04-04T23:17:39Oliver KruseGTX-7
234487261369
75D411BA46C6DF__no
2019-03-18T06:03:16J.R. Allenaofafujitsu
234487261369
86843750364637313977
6B3CE75705F06413no
2019-03-19T04:23:31marssystemsSYSTEM01
234487261369
86843750364637313977
6B3CE75705F06413no


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
106
TF factor-bounds graph:
267
230
240
250
260
270
280
290
2100
Last modified: 2019-03-19T04:23:31+00:00