is 2 4923397 - 1
has 1482091 decimal digits
takes 0.682 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
Actual2676.035265.6716%----6.035265.6716%0.0000%
PrimeNet2610.062462.2951%220004500000.00913.3047%0.071563.5411%1.2461%
GPU722651.481864.6154%320007000000.01372.3759%1.495665.4561%0.8407%
Difference+2+4.5534+1.0563%-32000-700000-0.0137-2.3759%+4.5397+0.2156%+0.2156%

Known prime factors (2 factors, 106.7 bits, 0.00216709% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
4923397457580517191135.4134647
3 × 1549
-315499.351e-101.753e-53.159e-5
492339728692964190076105178572271.281291393972394224
24 × 3 × 7 × 31 × 43 × 650595623
2019-08-094365059562398.8707.124213.306

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
492339713129341393809173673070897904618333106.694
P-1 results:
No P-1 results for M4923397


Trial Factoring results:
No TF results for M4923397


ECM factoring results:

Old Calculation Method

Total ECM effort:0.630 GHz-days
Estimated T-Level:0.150
DigitsB1CurvesCompleteFacMiss
20110003 / 1000.03097.030%
25500003 / 2800.01198.932%

New Calculation Method

Total ECM effort:0.630 GHz-days
Estimated T-Level:0.150
DigitsB1CompleteFacMiss
20110000.11589.102%
25500000.01198.938%


ECM Summary

B1B2factorcurvesGHz-days
50000500000030.630


Lucas-Lehmer results:
No L-L results for M4923397


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-20T06:19:30kkmrkkblmbrbkManual testing
45758051719
6710610E29AE8D__no
2018-04-10T15:54:54Oliver KruseGTX-1
45758051719
6710610E29AE8D__no
2019-08-09T14:11:06ATHec2-PRPCF
45758051719
2869296419007610517857
FFE295E02A54DD1Dno
2019-08-12T01:05:41oodairacom5
45758051719
2869296419007610517857
FFE295E02A54DD1Dno


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
267
230
240
250
260
270
280
290
2100
Last modified: 2019-08-12T01:05:41+00:00