is 2 5097461 - 1
has 1534489 decimal digits
takes 0.707 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
Actual2675.829265.6716%----5.829265.6716%0.0000%
PrimeNet2610.060362.2951%220005000000.00973.4092%0.069963.5805%1.2854%
GPU722651.431264.6154%340007000000.01412.4239%1.445465.4731%0.8577%
Difference+2+4.3979+1.0563%-34000-700000-0.0141-2.4239%+4.3838+0.1986%+0.1986%

Known prime factors (2 factors, 107.6 bits, 0.00211127% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
5097461304114523271134.8242983
19 × 157
-191577.389e-105.330e-67.772e-6
509746182051450373075262963112272.797804826661479855
5 × 7 × 22995047470853
2019-11-01722995047470853228.83251,802470,296

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
509746124953037713819847239856085246569733107.621
P-1 results:
No P-1 results for M5097461


Trial Factoring results:
No TF results for M5097461


ECM factoring results:

Old Calculation Method

Total ECM effort:0.422 GHz-days
Estimated T-Level:0.100
DigitsB1CurvesCompleteFacMiss
20110002 / 1000.02098.010%
25500002 / 2800.00799.287%

New Calculation Method

Total ECM effort:0.422 GHz-days
Estimated T-Level:0.100
DigitsB1CompleteFacMiss
20110000.06593.752%
25500000.00699.419%


ECM Summary

B1B2factorcurvesGHz-days
50000500000020.422


Lucas-Lehmer results:
No L-L results for M5097461


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-20T19:30:28kkmrkkblmbrbkManual testing
30411452327
8BBFB5F807A462__no
2018-05-06T16:30:25Oliver KruseGTX-5
30411452327
8BBFB5F807A462__no
2019-11-01T17:32:52ATHec2-PRPCF
30411452327
8205145037307526296311
8982FFF85B7A2576no
2019-11-03T16:47:55arnaudstm-11-010
30411452327
8205145037307526296311
8982FFF85B7A2576no


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
105
106
107
108
109
1010
1011
1012
1013
1014
TF factor-bounds graph:
267
230
240
250
260
270
280
290
2100
Last modified: 2019-11-03T16:47:55+00:00