is 2 4718369 - 1
has 1420371 decimal digits
takes 0.621 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
Actual2676.297565.6716%----6.297565.6716%0.0000%
PrimeNet2610.065162.2951%200004000000.00783.1240%0.072963.4730%1.1779%
GPU722651.546264.6154%300006000000.01172.2342%1.557965.4059%0.7906%
Difference+2+4.7513+1.0563%-30000-600000-0.0117-2.2342%+4.7396+0.2657%+0.2657%

Known prime factors (2 factors, 101.2 bits, 0.00214436% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
4718369135889027211133.6621440
25 × 32 × 5
-32323.181e-106.109e-61.243e-5
47183692111684954064115197372167.51722377276491772
22 × 3 × 104053 × 17921377
2019-04-21104053179213777.63030.20520.3482

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
4718369286954814181766150139986450437731101.179
P-1 results:
No P-1 results for M4718369


Trial Factoring results:
No TF results for M4718369


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
20110000.03296.826%
25500000.00399.709%


ECM Summary

B1B2factorcurvesGHz-days
50000500000010.197


Lucas-Lehmer results:
No L-L results for M4718369


PRP results:
dateuseridcompidcofactorsres64PRP
2017-11-19T00:01:12kkmrkkblmbrbkc4.xlarge
13588902721
EA7659B6E72C09__no
2018-03-11T14:29:28treborLaptop
13588902721
EA7659B6E72C09__no
2019-04-22T04:06:40ATHec2-PRPCF
13588902721
211168495406411519737
EA7659B6E72C090Fno


P-1 factor-bounds graph:
100
101
102
103
104
105
106
100
101
102
103
104
105
106
107
108
TF factor-bounds graph:
267
230
240
250
260
270
280
290
2100
Last modified: 2019-04-22T04:06:40+00:00