Reserved for MF - Sequence 4788 - Page 261

yoyo · 2019-01-15, 20:47

17030 curves done so far without factor. I run up to 18000 curves.
What is needed next?

VBCurtis · 2019-01-16, 01:59

2t50 was probably enough, so your curves are more than sufficient. We'll do poly select soon and get it fed to the 14e queue.

ricky · 2019-01-16, 09:58

I can do the linear algebra if you need it.

VBCurtis · 2019-02-01, 17:29

The c167 is factored and reported to factordb. I did zero ECM on the new line.
Go, Ricky, go!

wpolly · 2019-02-01, 20:02

The latest composite is a C154 (ECMed to t25) after three easy lines.
Edit: C126 at t30.

ricky · 2019-02-02, 08:42

I'm working on it!

ricky · 2019-02-02, 18:31

The C126 factors very nicely as p63*p63!

ricky · 2019-02-05, 16:13

It's now a C196... I've ECMed it to t=50. I think yoyo@home may be interested to go to t=55 at least... or perhaps even to t=60.

swellman · 2019-02-12, 01:55

Quote:

Originally Posted by ricky

It's now a C196... I've ECMed it to t=50. I think yoyo@home may be interested to go to t=55 at least... or perhaps even to t=60.

Anybody still working on this? Has yoyo been contacted about ECM?

RichD · 2019-03-20, 03:16

I see yoyo has completed t55 + 20K @ 26e7 and is nearing 12K @ 85e7. That should be plenty to start GNFS poly selection.

VBCurtis · 2019-03-21, 04:13

about 600 thread-hours on CADO poly select yielded this:

Code:

n: 1702810278506124393622905886419417373727833799255920336877918870350397583189521830994382118639550712786413448936290016013396498804612664118174179978449082129699734624314982852315442373887230082927
skew: 53530918.291
c0: -14138230899246094225865032544701492909383604820
c1: -93571871123367745680754273625163957009
c2: 37510656767740839089260370637202
c3: 475303574396348223775899
c4: -8150194247457752
c5: 4386480
Y0: -88526646710138023135509930133068454122
Y1: 21051283668116650162091989
# MurphyE (Bf=4.000e+08,Bg=2.680e+08,area=2.147e+17) = 2.67e-11

I don't recall a good way to run this through msieve to find the usual score; if someone could do so we can compare it to the C196 record and decide how much msieve-GPU poly select to continue with.

2019-02-01, 20:02	#2865
wpolly Sep 2002 Vienna, Austria 3×73 Posts	The latest composite is a C154 (ECMed to t25) after three easy lines. Edit: C126 at t30. Last fiddled with by wpolly on 2019-02-01 at 20:10

2019-03-20, 03:16	#2870
RichD Sep 2008 Kansas 2⁴·211 Posts	C196 @ i12534 I see yoyo has completed t55 + 20K @ 26e7 and is nearing 12K @ 85e7. That should be plenty to start GNFS poly selection.

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2019-01-15, 20:47	#2861
yoyo Oct 2006 Berlin, Germany 2³·7·11 Posts	17030 curves done so far without factor. I run up to 18000 curves. What is needed next?

2019-01-16, 01:59	#2862
VBCurtis "Curtis" Feb 2005 Riverside, CA 1001011111101₂ Posts	2t50 was probably enough, so your curves are more than sufficient. We'll do poly select soon and get it fed to the 14e queue.

2019-01-16, 09:58	#2863
ricky May 2018 2B₁₆ Posts	I can do the linear algebra if you need it.

2019-02-01, 17:29	#2864
VBCurtis "Curtis" Feb 2005 Riverside, CA 12FD₁₆ Posts	The c167 is factored and reported to factordb. I did zero ECM on the new line. Go, Ricky, go!

2019-02-02, 08:42	#2866
ricky May 2018 43 Posts	I'm working on it!

2019-02-02, 18:31	#2867
ricky May 2018 43₁₀ Posts	The C126 factors very nicely as p63*p63!

2019-02-05, 16:13	#2868
ricky May 2018 43 Posts	It's now a C196... I've ECMed it to t=50. I think yoyo@home may be interested to go to t=55 at least... or perhaps even to t=60.