is 2 2062429 - 1
has 620853 decimal digits
takes 0.136 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
Actual26714.407268.6567%500000150000000.12305.1420%14.530270.2684%1.6117%
PrimeNet2580.018663.7931%90001600000.00162.6687%0.020364.7593%0.9662%
GPU722620.297966.1290%90001300000.00151.3653%0.299466.5915%0.4624%
Difference+5+14.1094+2.5277%+491000+14870000+0.1215+3.7767%+14.2309+3.6769%+3.6769%

Known prime factors (2 factors, 98.1 bits, 0.00475540% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
2062429850415374087211446.27320616840
23 × 32 × 5 × 57269
-9572696.907e-60.00030.0006
206242939302469149447991651.804952819931
7 × 67 × 2031599
2014-07-116720315990.00020.01060.0197

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
20624293342342400427884264392161920793098.077
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2016-03-16T13:42:51alpertronManual testing5000001500000012-
skipped known factor: 85041537408721
skipped known factor: 3930246914944799
--0.123--5.142%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2014-07-11T11:56:00TJAOIManual testing??51.804161.16801e-50.2942.52954e-5


ECM factoring results:

Old Calculation Method

Total ECM effort:2.833 GHz-days
Estimated T-Level:1.350
DigitsB1CurvesCompleteFacMiss
201100027 / 1000.27076.234%
255000027 / 2800.09690.792%

New Calculation Method

Total ECM effort:2.833 GHz-days
Estimated T-Level:1.350
DigitsB1CompleteFacMiss
20110001.12632.449%
25500000.10390.205%
302500000.00699.353%


ECM Summary

B1B2factorcurvesGHz-days
500005000070.355
50000500000060.509
50000533789670.611
500006750000141.358


Lucas-Lehmer results:
No L-L results for M2062429


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-06T11:21:56Oliver KruseGTX-3
85041537408721
3930246914944799
CEDEB071EBF3CD__no
2017-11-16T01:08:54kkmrkkblmbrbkc4.xlarge
85041537408721
3930246914944799
CEDEB071EBF3CD__no


P-1 factor-bounds graph:
B1 = 500000, B2 = 15000000 (P-1 stage 2)
B1 = 500000 (P-1 stage 1)
100
101
102
103
104
105
106
100
101
102
103
104
105
106
107
108
TF factor-bounds graph:
267
2
240
250
260
270
280
290
2100
Last modified: 2022-05-04T07:33:34+00:00