is 2 5072519 - 1
has 1526981 decimal digits
takes 0.703 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
Actual2675.857865.6716%----5.857865.6716%0.0000%
PrimeNet2610.060662.2951%220005000000.00973.4064%0.070263.5795%1.2844%
GPU722651.438364.6154%340007000000.01412.4219%1.452465.4724%0.8570%
Difference+2+4.4195+1.0563%-34000-700000-0.0141-2.4219%+4.4054+0.1993%+0.1993%

Known prime factors (2 factors, 103.4 bits, 0.00203894% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
5072519121740457926.85912
22 × 3
-441.767e-128.039e-71.636e-6
50725191118674496675833710330492476.56611026814258121396
22 × 3 × 7 × 19 × 73 × 94644266987
2019-10-2173946442669875,156.41,036.41,935.7

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
50725191361879444595609767516394736339332103.425
P-1 results:
No P-1 results for M5072519


Trial Factoring results:
No TF results for M5072519


ECM factoring results:

Old Calculation Method

Total ECM effort:0.211 GHz-days
Estimated T-Level:0.050
DigitsB1CurvesCompleteFacMiss
20110001 / 1000.01099.000%
25500001 / 2800.00499.643%

New Calculation Method

Total ECM effort:0.211 GHz-days
Estimated T-Level:0.050
DigitsB1CompleteFacMiss
20110000.03296.826%
25500000.00399.709%


ECM Summary

B1B2factorcurvesGHz-days
50000500000010.211


Lucas-Lehmer results:
No L-L results for M5072519


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-20T19:27:02kkmrkkblmbrbkManual testing
121740457
A76F79CE4D8D91__no
2018-04-30T21:49:37treborLaptop
121740457
A76F79CE4D8D91__no
2019-10-21T16:04:06ATHec2-PRPCF
121740457
111867449667583371033049
269318F800A4C912no
2019-10-23T13:09:50arnaudstm-11-010
121740457
111867449667583371033049
269318F800A4C912no


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
220
230
240
250
260
270
280
290
2100
Last modified: 2019-10-23T13:09:50+00:00