is 2 8092243 - 1
has 2436008 decimal digits
takes 2.113 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L9479F71F24C2A181double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2673.671965.6716 %9500016150000.06733.0596 %3.739266.7220 %
Target2673.671965.6716 %5500060000000.14352.5715 %3.815466.5544 %
Difference---+40000-4385000-0.0761+0.4881%-0.0761+0.1676 %

Known prime factors (1 factor, 69.5 bits, 0.00085834% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
80922438113583770502009685432169.45950131859426997
3 × 977 × 107119 × 159673
2013-06-1310711915967315.1270.04160.0825

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2002-07-20ANONYMOUSv4_computers40000310000--0.0211.665%
2012-10-15NesowaEPC9500016150006--0.0673.060%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1998-08-24ANONYMOUSv4_computers212610.019
1998-11-07ANONYMOUSv4_computers212620.038
1998-11-28ANONYMOUSv4_computers212630.121
2011-07-26Carsten KossendeyManual testing2632640.243


ECM factoring results:
Total ECM effort:0.794 GHz-days
DigitsB1CompleteFacMiss


ECM Summary

B1B2factorcurvesGHz-days
10.794


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2000-04-05ANONYMOUSv4_computers9479F71F24C2A1812.113
2002-11-02ANONYMOUSv4_computers9479F71F24C2A1812.113


PRP results:
dateuseridcompidcofactorsres64
2018-08-09Oliver KruseGTX-1
811358377050200968543
1071C7F8481E2D75
2020-01-29marssystemsSystem01
811358377050200968543
1071C7F8481E2D75


CERT results:
No CERT results for M8092243


P-1 factor-bounds graph:
B1 = 95000, B2 = 1615000 (P-1 stage 2)
B1 = 95000 (P-1 stage 1)
B1 = 40000, B2 = 310000 (P-1 stage 2)
B1 = 40000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
TF factor-bounds graph:
264
263
262
261
this exponent TF target: 67
TF double-checked to: 67
250
260
270
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Last modified: 2024-03-13T02:15:48+00:00