is 2 4995547 - 1
has 1503810 decimal digits
takes 0.692 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
Actual2675.948165.6716%----5.948165.6716%0.0000%
PrimeNet2610.061562.2951%220004500000.00913.3127%0.070663.5441%1.2491%
GPU722651.460464.6154%340007000000.01412.4157%1.474665.4702%0.8548%
Difference+2+4.4876+1.0563%-34000-700000-0.0141-2.4157%+4.4735+0.2015%+0.2015%

Known prime factors (2 factors, 136.4 bits, 0.00273137% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
49955473778161869649191548.42537815297
3 × 13 × 239 × 4057
-23940578.476e-68.984e-59.776e-5
49955473143293166218798157150503032788.02231460950784957064333
3 × 89 × 117831276348153799
2019-09-038911783127634815379921,438,1271.290e+92.410e+9

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
499554711875870385736736598931081817755498132045742136.447
P-1 results:
No P-1 results for M4995547


Trial Factoring results:
No TF results for M4995547


ECM factoring results:

Old Calculation Method

Total ECM effort:0.632 GHz-days
Estimated T-Level:0.150
DigitsB1CurvesCompleteFacMiss
20110003 / 1000.03097.030%
25500003 / 2800.01198.932%

New Calculation Method

Total ECM effort:0.632 GHz-days
Estimated T-Level:0.150
DigitsB1CompleteFacMiss
20110000.11589.102%
25500000.01198.938%


ECM Summary

B1B2factorcurvesGHz-days
50000500000030.632


Lucas-Lehmer results:
No L-L results for M4995547


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-20T19:14:47kkmrkkblmbrbkManual testing
377816186964919
C9DB3141600D9D__no
2018-04-22T18:19:25ATHec2-PRPCFDC
377816186964919
C9DB3141600D9D__no
2019-09-04T03:27:10Niels_Mache_NextcloudSuperDry-X
377816186964919
314329316621879815715050303
60D534AD25692837no
2019-09-05T04:04:49GANKL-SCH06
377816186964919
314329316621879815715050303
60D534AD25692837no


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
106
107
108
109
1010
1011
1012
1013
1014
1015
1016
1017
1018
TF factor-bounds graph:
267
240
250
260
270
280
290
2100
Last modified: 2019-09-05T04:04:49+00:00