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Old 2019-01-12, 04:46   #1277
bsquared
 
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"Ben"
Feb 2007

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Quote:
Originally Posted by unconnected View Post
[/CODE]snfs poly (autogenerated from factordb):
Code:
n: 6999202319305638157992007126776388369130142178858279796562465940511849597438002954315242166473772027
m: 19342813113834066795298816
deg: 4
skew: 8.04
type: snfs
c4: 1
c0: -4196
rlim: 371300
alim: 371300
lpbr: 25
lpba: 25
mfbr: 45
mfba: 45
rlambda: 2.3
alambda: 2.3
This doesn't look like yafu's fault (for once ): that poly has no linear coefficients, Y0,Y1

Yafu will autodetect and autogenerate polys for these numbers anyway.

Code:
Y:\projects\factoring\yafu-wip> .\yafu-x64-mingw.exe "nfs(69992023193056381579920071267763883691301421788582797965624659405118495974380
02954315242166473772027)" -threads 8


nfs: commencing nfs on c100: 6999202319305638157992007126776388369130142178858279796562465940511849597438002954315242166473772027
nfs: searching for brent special forms...
nfs: input divides 2^334 - 1049

<snip>

NFS elapsed time = 120.9553 seconds.


***factors found***

P32 = 12689410701953888253447581147981
P69 = 551578200414611530490075628464812187583166946308429181825639126923367
Edit: Here's the poly it generated:
Code:
n: 6999202319305638157992007126776388369130142178858279796562465940511849597438002954315242166473772027
# 2^334-1049, difficulty: 101.15, anorm: 3.36e+020, rnorm: 4.82e+030
# scaled difficulty: 102.84, suggest sieving rational side
# size = 8.764e-011, alpha = 0.000, combined = 2.825e-007, rroots = 2
type: snfs
size: 101
skew: 4.0242
c4: 4
c0: -1049
Y1: -1
Y0: 9671406556917033397649408
m: 9671406556917033397649408

rlim: 960000
alim: 960000
lpbr: 24
lpba: 24
mfbr: 48
mfba: 48
rlambda: 2.1
alambda: 2.1

Last fiddled with by bsquared on 2019-01-12 at 04:49
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