is 2 7339667 - 1
has 2209460 decimal digits
takes 1.600 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L3E38A03257417FD7double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2674.048465.6716 %9000016425000.05522.9996 %4.103666.7013 %
Target2674.048465.6716 %5000055000000.10972.4289 %4.158166.5054 %
Difference---+40000-3857500-0.0545+0.5707%-0.0545+0.1959 %

Known prime factors (1 factor, 76.6 bits, 0.00104421% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
73396671178981978477348215686172476.6428031576762796924
22 × 19 × 105678641615749
2017-12-30191056786416157492,085.11,820,4613,400,115

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2002-01-15ANONYMOUSv4_computers35000455000--0.0181.778%
2002-05-05ANONYMOUSv4_computers40000530000--0.0211.914%
2012-08-12NesowaEPC9000016425006--0.0553.000%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1998-07-21ANONYMOUSv4_computers212620.042
1998-10-25ANONYMOUSv4_computers212630.134
2013-10-28NesowaManual testing2632640.267
2013-11-20David CampeauManual testing2642650.509
2015-06-21VictordeHollanderManual testing2652661.018
2016-10-06Gordon SpenceManual testing2662672.036


ECM factoring results:
Total ECM effort:1.326 GHz-days
Estimated T-Level:0.769
DigitsB1CompleteFacMiss
20110000.15485.740%
25500000.01498.587%


ECM Summary

B1B2factorcurvesGHz-days
50000500000030.995
50000500000010.332


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-05-02ANONYMOUSv4_computersEDD63CE9F72982661.600
2002-05-18ANONYMOUSv4_computers3E38A03257417FD71.600
2002-10-12Matt Perryv4_computers3E38A03257417FD71.600
2002-12-02Matt Perryv4_computers3E38A03257417FD71.600


PRP results:
dateuseridcompidcofactorsres64
2018-03-06Oliver KruseGTX-0
117898197847734821568617
E54F7DFD0714753B
2019-05-09kkmrkkblmbrbkc5.large
117898197847734821568617
E54F7DFD0714753B


CERT results:
No CERT results for M7339667


P-1 factor-bounds graph:
B1 = 90000, B2 = 1642500 (P-1 stage 2)
B1 = 90000 (P-1 stage 1)
B1 = 40000, B2 = 530000 (P-1 stage 2)
B1 = 35000, B2 = 455000 (P-1 stage 2)
B1 = 40000 (P-1 stage 1)
B1 = 35000 (P-1 stage 1)
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TF factor-bounds graph:
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this exponent TF target: 67
TF double-checked to: 67
ECM T-Level=0.77 ~= -14-bit
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Last modified: 2024-02-09T03:30:02+00:00