is 2 79063879 - 1
has 23800600 decimal digits
takes 246.718 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
Actual27596.781364.0000 %665000134662506.16473.7445 %102.946065.3480 %
Target27596.781364.0000 %5000008500000023.09323.7772 %119.874565.3598 %
Difference---+165000-71533750-16.9285-0.0328 %-16.9285-0.0118 %

Known prime factors (1 factor, 81.1 bits, 0.00010255% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
7906387925594173733746798444170892581.08216185756414599136
25 × 34 × 131 × 167 × 349 × 817871
2016-08-123498178719,057.90.20310.3766

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2016-08-12Judge HaleCJ665000134662501222581.0826.3633.744%


Trial Factoring results:
57585960616263646566676869707172737475
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-23ANONYMOUSv4_computers212531.52000e-5
2000-02-09ANONYMOUSv4_computers212543.04000e-5
2001-06-17Jossv4_computers212570.000
2004-03-16ANONYMOUSv4_computers212630.012
2016-04-05Mark RoseManual testing263264
2010-12-02ITSWUV2642650.047
2010-12-08waleckikermit2652660.095
2011-02-18Cloudy WaterACER2662670.189
2011-02-22Cloudy WaterACER2672680.378
2011-02-27Cloudy WaterACER2682690.756
2011-03-05MarzbugCorei72692701.512
2013-01-14igManual testing2702713.024
2016-02-14DerekManual testing2712726.049
2016-05-30Mark RoseManual testing27227312.10
2016-07-08AirSquirrelsManual testing27327572.59


ECM factoring results:
No ECM results for M79063879


Lucas-Lehmer results:
No L-L results for M79063879


PRP results:
No PRP results for M79063879


CERT results:
No CERT results for M79063879


P-1 factor-bounds graph:
B1 = 665000, B2 = 13466250 (P-1 stage 2)
B1 = 665000 (P-1 stage 1)
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108
TF factor-bounds graph:
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257
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this exponent TF target: 75
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00