is 2 4965419 - 1
has 1494741 decimal digits
takes 0.688 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
Actual2675.984265.6716%----5.984265.6716%0.0000%
PrimeNet2610.061962.2951%220004500000.00913.3094%0.071063.5429%1.2478%
GPU722651.469364.6154%340007000000.01412.4132%1.483465.4693%0.8539%
Difference+2+4.5149+1.0563%-34000-700000-0.0141-2.4132%+4.5007+0.2024%+0.2024%

Known prime factors (3 factors, 129.3 bits, 0.00260429% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
496541939723353825.2434
22
-449.010e-138.039e-71.636e-6
49654192100968087291237.61221156
22 × 3 × 41 × 43
2008-09-0841435.823e-98.262e-61.677e-5
49654191013519721351549758232166.45810205782446069
34 × 7 × 151 × 661 × 180337
2019-08-206611803374.46550.00210.0037

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
496541983457496973155483371962.856
496541940260401663709248143234945192891.701
49654192129372590398659269225745035896732104.070
496541984585819076930352878176306748922285635139129.314
P-1 results:
No P-1 results for M4965419


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-09-08T00:21:00Will EdgingtonManual testing??37.612122.13581e-91.4624.53725e-9


ECM factoring results:

Old Calculation Method

Total ECM effort:0.631 GHz-days
Estimated T-Level:0.150
DigitsB1CurvesCompleteFacMiss
20110003 / 1000.03097.030%
25500003 / 2800.01198.932%

New Calculation Method

Total ECM effort:0.631 GHz-days
Estimated T-Level:0.150
DigitsB1CompleteFacMiss
20110000.09790.776%
25500000.00999.129%


ECM Summary

B1B2factorcurvesGHz-days
50000500000030.631


Lucas-Lehmer results:
No L-L results for M4965419


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-20T06:35:45kkmrkkblmbrbkManual testing
39723353
210096808729
844EDB32A9B891__no
2018-04-22T09:17:26Oliver KruseGTX-1
39723353
210096808729
844EDB32A9B891__no
2019-08-20T18:38:02mnd975204b
39723353
210096808729
101351972135154975823
638393CAD420F8CAno
2019-08-20T19:49:28ATHec2-PRPCFDC
39723353
210096808729
101351972135154975823
638393CAD420F8CAno


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
106
TF factor-bounds graph:
267
2
220
230
240
250
260
270
280
290
2100
Last modified: 2019-08-20T19:49:28+00:00