is 2 6194219 - 1
has 1864646 decimal digits
takes 1.098 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-LCF210BB7D1C0A5E5double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2674.797065.6716 %11500022712500.05973.2868 %4.856866.7999 %
Target2662.384265.1515 %4000045000000.07272.4299 %2.457065.9983 %
Difference+1+2.4128+0.5201 %+75000-2228750-0.0130+0.8569%+2.3998+0.8016 %

Known prime factors (1 factor, 67.6 bits, 0.00109151% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
61942192252776896710317803592167.61018184511208841
892267 × 20380123
2016-06-17892267203801234.79700.50210.5329

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2000-12-07ANONYMOUSv4_computers30000240000--0.0111.579%
2013-04-02Squeeky_SquirrelP4_260011500022712506--0.0603.678%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1998-10-11ANONYMOUSv4_computers212620.050
2016-02-23Mark RoseManual testing2622630.158
2014-09-10NesowaManual testing2632640.317
2014-09-17monstManual testing2642650.603
2015-10-10Bruno VictalManual testing2652661.206
2016-03-14YxinityManual testing2662672.413


ECM factoring results:
Total ECM effort:1.347 GHz-days
Estimated T-Level:0.962
DigitsB1CompleteFacMiss
20110000.19282.505%
25500000.01898.236%
302500000.00199.888%


ECM Summary

B1B2factorcurvesGHz-days
50000500000030.808
50000500000020.539


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-04-13ANONYMOUSv4_computersCF210BB7D1C0A5E51.098
1999-05-02ANONYMOUSv4_computersCF210BB7D1C0A5E51.098
2001-01-21ANONYMOUSv4_computersCF210BB7D1C0A5E51.098


PRP results:
dateuseridcompidcofactorsres64
2017-10-07kkmrkkblmbrbkc4.xlarge
225277689671031780359
5C90B0443611A5C0
2018-09-21rucio
225277689671031780359
5C90B0443611A5C0


CERT results:
No CERT results for M6194219


P-1 factor-bounds graph:
B1 = 115000, B2 = 2271250 (P-1 stage 2)
B1 = 115000 (P-1 stage 1)
B1 = 30000, B2 = 240000 (P-1 stage 2)
B1 = 30000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
TF factor-bounds graph:
267
266
265
264
263
262
this exponent TF target: 66
TF double-checked to: 67
ECM T-Level=0.96 ~= -13-bit
250
260
270
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Last modified: 2024-02-09T03:30:02+00:00