is 2 4869209 - 1
has 1465778 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
Actual2676.102465.6716%----6.102465.6716%0.0000%
PrimeNet2610.063162.2951%220004500000.00913.2987%0.072263.5388%1.2438%
GPU722651.498364.6154%320007000000.01372.3715%1.512165.4545%0.8391%
Difference+2+4.6041+1.0563%-32000-700000-0.0137-2.3715%+4.5903+0.2171%+0.2171%

Known prime factors (3 factors, 172.9 bits, 0.00355154% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
4869209539897893931135.6525544
23 × 32 × 7 × 11
-9111.128e-91.831e-63.681e-6
486920937511509812770168411961.702385191001380
22 × 3 × 5 × 61 × 73 × 103 × 13997
2016-05-23103139970.10240.00020.0003
4869209564004606766092389040812375.5785791542391855560
23 × 3 × 5 × 3552103 × 13587121
2019-07-123552103135871212,734.80.82381.4530

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
48692092025238514604914254369041675133097.354
4869209304504899359831108978935531821283334111.230
486920921156664341153854771628582200608382062812142137.280
486920911422438520372897217303352646300350240417041763320
553
53172.932
P-1 results:
No P-1 results for M4869209


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2016-05-23T15:31:50TJAOIManual testing261262*61.702190.0391.3720.080


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
20110000.03296.826%
25500000.00399.709%


ECM Summary

B1B2factorcurvesGHz-days
50000500000010.209


Lucas-Lehmer results:
No L-L results for M4869209


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-20T19:15:25kkmrkkblmbrbkManual testing
53989789393
3751150981277016841
299F2671D04886__no
2018-04-01T13:13:26Oliver KruseGTX-7
53989789393
3751150981277016841
299F2671D04886__no
2019-07-12T21:28:47Niels_Mache_NextcloudSuperDry3
53989789393
3751150981277016841
56400460676609238904081
DB24B6C1A7FDE815no
2019-07-13T23:04:59marssystemsSYSTEM01
53989789393
3751150981277016841
56400460676609238904081
DB24B6C1A7FDE815no


P-1 factor-bounds graph:
100
101
102
103
104
105
106
107
100
101
102
103
104
105
106
107
108
TF factor-bounds graph:
267
262
230
240
250
260
270
280
290
2100
Last modified: 2019-07-13T23:04:59+00:00