Reserved for MF - Sequence 4788 - Page 259

VBCurtis · 2017-12-16, 00:51

Factors, reported to FactorDB this time:

Code:

5549197341624338233523401594270651210469419943578860543352095617937601
1811457164989861608083111991415393667057176845661763189253626073324202259447

CADO took 1.7 megathreadseconds for the C146 factorization. That includes 10 hrs wall clock time for the linear algebra.

RichD · 2018-01-07, 07:00

yoyo found a p43 leaving a C135 at this step.

Anyone interested at finishing it off?
(I am over committed right now and can't do it for a while.)

Dubslow · 2018-01-07, 16:36

I got it.

Dubslow · 2018-01-10, 03:15

The following C185 has had at least t45 with continuing (if extremely slow) ECM by me. Looks like a likely GNFS target. It would take me 90 hours to complete ECM to t50, but I'm letting it run now while my computer access is intermittent. Either yoyo@home or someone else can complete ECM (to ~t55 level I would think) and begin a poly search.

swellman · 2018-01-14, 17:55

Dubslow - any hits? You mention intermittent computer access, but let us know when you can about progress.

Maybe yoyo can take on ECM to t55 if necessary? I don’t have the resources available currently.

Dubslow · 2018-01-14, 21:01

A P46 popped out right after I PM'd yoyo@home, and the C140 residual will be done in a few hours (Sandy Bridge quad core isn't very fast these days, but at least I'm back home after the holidays now)

Dubslow · 2018-01-15, 21:08

Index 12515 has a C197. t40 complete, 12 hours on my box to completing t45. 4/13s ECM rule suggests a t60 be completed. I think we'd definitely need yoyo@home for this.

Perhaps two runs for yoyo@home: a hybrid t50/t55 -- perhaps 12K@75M, with the second round being a standard t60 42K@260M?

Dubslow · 2018-02-25, 14:29

yoyo@home seems to have completed ECM to at least the t60 level. I believe poly select can now begin, although perhaps some further ECM is warranted -- or perhaps not.

RichD · 2018-03-25, 23:56

yoyo is completing 10K @ 850e6. This is surely enough ECM. A C197 can also be added to the poly select/generation queue.

RichD · 2018-10-25, 11:20

It looks like yoyo completed a full t55 plus 8000 @ t60 on the remaining C174. Should be ready for poly selection.

RichD · 2018-12-01, 22:05

Anybody running ECM on the C153? After the C174 was split, it has advanced a couple terms but nothing recently. It stands at:

2^2 * 3^2 * 7^2 * ... * C153

2017-12-16, 00:51	#2839
VBCurtis "Curtis" Feb 2005 Riverside, CA 5635₁₀ Posts	Factors, reported to FactorDB this time: Code: 5549197341624338233523401594270651210469419943578860543352095617937601 1811457164989861608083111991415393667057176845661763189253626073324202259447 CADO took 1.7 megathreadseconds for the C146 factorization. That includes 10 hrs wall clock time for the linear algebra.

2018-01-07, 07:00	#2840
RichD Sep 2008 Kansas EDF₁₆ Posts	C135 @ i12513 yoyo found a p43 leaving a C135 at this step. Anyone interested at finishing it off? (I am over committed right now and can't do it for a while.)

2018-01-10, 03:15	#2842
Dubslow Basketry That Evening! "Bunslow the Bold" Jun 2011 40<A<43 -89<O<-88 16065₈ Posts	The following C185 has had at least t45 with continuing (if extremely slow) ECM by me. Looks like a likely GNFS target. It would take me 90 hours to complete ECM to t50, but I'm letting it run now while my computer access is intermittent. Either yoyo@home or someone else can complete ECM (to ~t55 level I would think) and begin a poly search. Last fiddled with by Dubslow on 2018-01-10 at 03:16

2018-01-14, 21:01	#2844
Dubslow Basketry That Evening! "Bunslow the Bold" Jun 2011 40<A<43 -89<O<-88 16065₈ Posts	A P46 popped out right after I PM'd yoyo@home, and the C140 residual will be done in a few hours (Sandy Bridge quad core isn't very fast these days, but at least I'm back home after the holidays now) Last fiddled with by Dubslow on 2018-01-14 at 21:01

2018-01-15, 21:08	#2845
Dubslow Basketry That Evening! "Bunslow the Bold" Jun 2011 40<A<43 -89<O<-88 3·29·83 Posts	Index 12515 has a C197. t40 complete, 12 hours on my box to completing t45. 4/13s ECM rule suggests a t60 be completed. I think we'd definitely need yoyo@home for this. Perhaps two runs for yoyo@home: a hybrid t50/t55 -- perhaps 12K@75M, with the second round being a standard t60 42K@260M? Last fiddled with by Dubslow on 2018-01-15 at 21:10

2018-01-07, 16:36	#2841
Dubslow Basketry That Evening! "Bunslow the Bold" Jun 2011 40<A<43 -89<O<-88 3×29×83 Posts	I got it.

2018-01-14, 17:55	#2843
swellman Jun 2012 111100001000₂ Posts	Dubslow - any hits? You mention intermittent computer access, but let us know when you can about progress. Maybe yoyo can take on ECM to t55 if necessary? I don’t have the resources available currently.

2018-02-25, 14:29	#2846
Dubslow Basketry That Evening! "Bunslow the Bold" Jun 2011 40<A<43 -89<O<-88 3·29·83 Posts	yoyo@home seems to have completed ECM to at least the t60 level. I believe poly select can now begin, although perhaps some further ECM is warranted -- or perhaps not.

2018-03-25, 23:56	#2847
RichD Sep 2008 Kansas 111011011111₂ Posts	C197 @ i12515 yoyo is completing 10K @ 850e6. This is surely enough ECM. A C197 can also be added to the poly select/generation queue.

2018-10-25, 11:20	#2848
RichD Sep 2008 Kansas 3807₁₀ Posts	C174 @ i12516 It looks like yoyo completed a full t55 plus 8000 @ t60 on the remaining C174. Should be ready for poly selection.

2018-12-01, 22:05	#2849
RichD Sep 2008 Kansas 3⁴·47 Posts	C153 @ i12518 Anybody running ECM on the C153? After the C174 was split, it has advanced a couple terms but nothing recently. It stands at: 2^2 * 3^2 * 7^2 * ... * C153

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