is 2 4869349 - 1
has 1465821 decimal digits
takes 0.675 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
Actual2676.102265.6716%----6.102265.6716%0.0000%
PrimeNet2610.063162.2951%220004500000.00913.2987%0.072263.5388%1.2438%
GPU722651.498364.6154%320007000000.01372.3715%1.512065.4545%0.8391%
Difference+2+4.6039+1.0563%-32000-700000-0.0137-2.3715%+4.5902+0.2171%+0.2171%

Known prime factors (2 factors, 115.5 bits, 0.00237202% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
48693491825613989792491547.37518745976
23 × 37 × 63331
-37633316.047e-60.00070.0013
48693493221615360526464543212168.12633080555126840
23 × 5 × 13 × 63616452167
2019-07-11136361645216718.353696.621,301.1

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
48693495881426071907490031860288850538492935115.502
P-1 results:
No P-1 results for M4869349


Trial Factoring results:
No TF results for M4869349


ECM factoring results:

Old Calculation Method

Total ECM effort:0.209 GHz-days
Estimated T-Level:0.050
DigitsB1CurvesCompleteFacMiss
20110001 / 1000.01099.000%
25500001 / 2800.00499.643%

New Calculation Method

Total ECM effort:0.209 GHz-days
Estimated T-Level:0.050
DigitsB1CompleteFacMiss
20110000.03896.227%
25500000.00499.645%


ECM Summary

B1B2factorcurvesGHz-days
50000500000010.209


Lucas-Lehmer results:
No L-L results for M4869349


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-20T06:41:49kkmrkkblmbrbkManual testing
182561398979249
8933D854446658__no
2018-04-01T12:51:35Oliver KruseGTX-1
182561398979249
8933D854446658__no
2019-07-12T00:17:27ATHec2-PRPCF
182561398979249
322161536052646454321
203EBA605408D984no
2019-07-13T23:20:47arnaudstm-11-010
182561398979249
322161536052646454321
203EBA605408D984no


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
105
106
107
108
109
1010
1011
TF factor-bounds graph:
267
240
250
260
270
280
290
2100
Last modified: 2019-07-13T23:20:47+00:00