is 2 6709463 - 1
has 2019750 decimal digits
takes 1.258 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L43117E72070FC792double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2674.428765.6716 %8000014400000.04192.8085 %4.470566.6358 %
Target2674.428765.6716 %4000040000000.06952.1013 %4.498266.3930 %
Difference---+40000-2560000-0.0276+0.7072%-0.0276+0.2428 %

Known prime factors (1 factor, 72.1 bits, 0.00107461% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
670946350639219546042949747832272.101377371628296057
224711 × 1679364287
2017-01-092247111679364287142.5424.92446.443

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2001-07-29ANONYMOUSv4_computers30000307500--0.0121.504%
2001-10-25ANONYMOUSv4_computers30000255000--0.0111.419%
2012-01-25kurlysmile8000014400006--0.0422.809%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1998-06-28ANONYMOUSv4_computers212620.046
2001-10-25ANONYMOUSv4_computers212630.146
2014-06-29NesowaManual testing2632640.293
2014-07-08lycornManual testing2642650.557
2015-11-10snme2pm1Manual testing2652661.114
2016-04-23Gordon SpenceManual testing2662672.228


ECM factoring results:
Total ECM effort:1.850 GHz-days
Estimated T-Level:1.154
DigitsB1CompleteFacMiss
20110000.23179.392%
25500000.02197.887%
302500000.00199.865%


ECM Summary

B1B2factorcurvesGHz-days
50000500000030.995
50000500000030.855


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-03-26schazv4_computers43117E72070FC7921.258
2002-01-08ANONYMOUSv4_computers43117E72070FC7921.258


PRP results:
dateuseridcompidcofactorsres64
2018-01-05Oliver KruseGTX-6
5063921954604294974783
1C9554540AC113FF
2018-11-30kkmrkkblmbrbkc5.large
5063921954604294974783
1C9554540AC113FF


CERT results:
No CERT results for M6709463


P-1 factor-bounds graph:
B1 = 80000, B2 = 1440000 (P-1 stage 2)
B1 = 80000 (P-1 stage 1)
B1 = 30000, B2 = 307500 (P-1 stage 2)
B1 = 30000, B2 = 255000 (P-1 stage 2)
B1 = 30000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
267
266
265
264
263
262
this exponent TF target: 67
TF double-checked to: 67
ECM T-Level=1.15 ~= -13-bit
250
260
270
280
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Last modified: 2024-02-09T03:30:02+00:00