is 2 479533 - 1
has 144354 decimal digits
takes 0.006 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26761.964371.6418 %----61.964371.6418 %
Target2440.000056.8182 %800013000000.001313.9498 %0.001362.8420 %
Difference+23+61.9643+14.8236 %-8000-1300000-0.0013-13.9498 %+61.9629+8.7998 %

Known prime factors (3 factors, 144.1 bits, 0.03004089% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
4795337672529722.8718
23
-881.167e-121.366e-72.780e-7
4795335974559190971239.120622956
22 × 3 × 51913
2008-07-214519132.809e-74.837e-59.022e-5
47953350573412331140300217625532582.0655273194162981515372
22 × 32 × 73 × 14731 × 28989779519
2020-10-1614731289897795194,010,81226.97450.379

4 Composite Factors:
P-1 results:
No P-1 results for M479533


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2008-07-21J FeitsmaManual testing??
39.120
12


ECM factoring results:
Total ECM effort:12.943 GHz-days
Estimated T-Level:26.435
DigitsB1CompleteFacMiss
201100023.8990.000%
25500003.0284.840%
302500000.28775.049%
3510000000.02297.832%
4030000000.00199.860%


ECM Summary

B1B2factorcurvesGHz-days
5000050000002813.633
25000025000000483.103
25000025000000966.206


Lucas-Lehmer results:
No L-L results for M479533


PRP results:
dateuseridcompidcofactorsres64
2017-09-26Oliver KruseDoppelherz
7672529
597455919097
E4F88917841FED82
2017-09-27Oliver KruseManual testing
7672529
597455919097
E4F88917841FED82
2017-11-09kkmrkkblmbrbkc4.large
7672529
597455919097
E4F88917841FED82
2020-04-18Oliver KruseAddPrpType5
7672529
597455919097
75475621B46B1DC1
2020-10-16M Millercruncher
7672529
597455919097
5057341233114030021762553
75475621B46B1DC1


CERT results:
dateuseridcompid
2020-10-16curtiscwcm229--05l


P-1 factor-bounds graph:
100
101
102
103
104
105
100
101
102
103
104
105
106
107
108
109
1010
1011
TF factor-bounds graph:
this exponent TF target: 44
TF double-checked to: 67
ECM T-Level=26.44 ~= 71-bit
250
260
270
280
290
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Last modified: 2024-03-13T02:15:48+00:00