is 2 4514893 - 1
has 1359119 decimal digits
takes 0.594 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
Actual2676.581365.6716%----6.581365.6716%0.0000%
PrimeNet2610.068062.2951%190004000000.00763.0660%0.075663.4511%1.1560%
GPU722651.615964.6154%260005500000.01042.0923%1.626365.3557%0.7403%
Difference+2+4.9654+1.0563%-26000-550000-0.0104-2.0923%+4.9550+0.3159%+0.3159%

Known prime factors (2 factors, 134.3 bits, 0.00297487% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
451489391103758287139691653.0161008924888
23 × 3 × 42038537
-8420385370.00030.43730.8167
451489329676958372820952679280572581.296328656275717065196
22 × 6084019 × 13504900121
2019-01-27608401913504900121192,899141.57262.37

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
45148932703682442294986477537341441215352292823341134.312
P-1 results:
No P-1 results for M4514893


Trial Factoring results:
No TF results for M4514893


ECM factoring results:

Old Calculation Method

Total ECM effort:0.195 GHz-days
Estimated T-Level:0.050
DigitsB1CurvesCompleteFacMiss
20110001 / 1000.01099.000%
25500001 / 2800.00499.643%

New Calculation Method

Total ECM effort:0.195 GHz-days
Estimated T-Level:0.050
DigitsB1CompleteFacMiss
20110000.03896.227%
25500000.00499.645%


ECM Summary

B1B2factorcurvesGHz-days
50000500000010.195


Lucas-Lehmer results:
No L-L results for M4514893


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-20T06:35:10kkmrkkblmbrbkManual testing
9110375828713969
296EF725C96901__no
2018-02-19T13:30:09Oliver KruseGTX-2
9110375828713969
296EF725C96901__no
2019-01-29T12:05:44_p95holder_TFL15_PRPt17-E_d
9110375828713969
2967695837282095267928057
182EE948B2BB0B13no
2019-01-31T05:18:12arnaudstm-11-010
9110375828713969
2967695837282095267928057
182EE948B2BB0B13no


P-1 factor-bounds graph:
100
101
102
103
104
105
106
107
100
101
102
103
104
105
106
107
108
109
1010
1011
TF factor-bounds graph:
267
250
260
270
280
290
2100
Last modified: 2019-01-31T05:18:12+00:00