is 2 4734167 - 1
has 1425127 decimal digits
takes 0.623 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
Actual2676.276565.6716%----6.276565.6716%0.0000%
PrimeNet2610.064962.2951%200004000000.00783.1258%0.072763.4737%1.1786%
GPU722651.541164.6154%300006500000.01222.2813%1.553265.4226%0.8072%
Difference+2+4.7354+1.0563%-30000-650000-0.0122-2.2813%+4.7232+0.2490%+0.2490%

Known prime factors (2 factors, 126.4 bits, 0.00266967% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
4734167177047306881474631753.9751869888693
3 × 61 × 10217971
-61102179710.00050.10630.1985
473416762812262966326704286632272.412663392978810493
3 × 2459 × 21169 × 4248061
2019-05-02211694248061219.190.04800.0825

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
473416711120741997319127967512027438956593196939126.387
P-1 results:
No P-1 results for M4734167


Trial Factoring results:
No TF results for M4734167


ECM factoring results:

Old Calculation Method

Total ECM effort:0.592 GHz-days
Estimated T-Level:0.150
DigitsB1CurvesCompleteFacMiss
20110003 / 1000.03097.030%
25500003 / 2800.01198.932%

New Calculation Method

Total ECM effort:0.592 GHz-days
Estimated T-Level:0.150
DigitsB1CompleteFacMiss
20110000.09790.776%
25500000.00999.129%


ECM Summary

B1B2factorcurvesGHz-days
50000500000030.592


Lucas-Lehmer results:
No L-L results for M4734167


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-20T16:59:13kkmrkkblmbrbkManual testing
17704730688147463
8616AD2232AFA5__no
2018-03-13T04:34:13Dt12AMD_A6-9220
17704730688147463
8616AD2232AFA5__no
2019-05-03T20:33:12treborLaptop
17704730688147463
6281226296632670428663
D6400FD7B3E94ACAno
2019-05-03T21:30:24ATHec2-PRPCFDC
17704730688147463
6281226296632670428663
D6400FD7B3E94ACAno


P-1 factor-bounds graph:
100
101
102
103
104
105
100
101
102
103
104
105
106
107
108
TF factor-bounds graph:
267
250
260
270
280
290
2100
Last modified: 2019-05-03T21:30:24+00:00