20210610, 16:41  #199  
"Max"
Jun 2016
Toronto
19·47 Posts 
Quote:
Line 140 (7, 10) is booked for EdH in the sheet. 

20210610, 16:54  #200 
"Max"
Jun 2016
Toronto
19·47 Posts 
Line 99 (4, 9)
Three easy SNFS 159/160 composites on line 99 (4, 9) are looking for a good home.
Onebyone booking or three different households are welcome. 4 polys for each will be provided, if necessary. Please ECM first before processing. 
20210610, 17:06  #201  
(loop (#_fork))
Feb 2006
Cambridge, England
2×13^{2}×19 Posts 
Quote:
Last fiddled with by fivemack on 20210610 at 17:08 

20210610, 17:28  #202  
"Max"
Jun 2016
Toronto
19×47 Posts 
Quote:
And I suspect if not your PhD thesis and Magma code, this current paper would probably never be written in the first place! Generators of some of my highrank elliptic curves could only be found by Magma (not mwrank) and only by implementing fourdescent (see my posts at MathOverflow). There are still two Z2xZ6 curves (the topic of this paper) without the last generator. Magma bug reports is my another hobby. :) And yes, they still acknowledge that you "contributed code for performing fourdescent, from which the current implementation was adapted." Last fiddled with by Max0526 on 20210610 at 17:31 

20210610, 19:44  #203 
(loop (#_fork))
Feb 2006
Cambridge, England
2×13^{2}×19 Posts 
Having extracted a 22digit prime factor by 30 threadhours of SNFS from the c157 on line 99, I'm now running ECM on the other two integers. An even wiser person might have done it the other way round.
The slightly larger remaining integer split entirely by ECM. Last fiddled with by fivemack on 20210610 at 20:26 
20210610, 22:46  #204 
"Daniel Jackson"
May 2011
14285714285714285714
2^{3}·83 Posts 
Is the C93 from line 99 booked, or not? Just curious. I ECMed it to t31 (no factors), but I didn't want to run SIQS on it if someone else had it reserved.
EDIT: I went ahead and did it, since it wasn't listed under the Composites column, nor was it listed under Booked. Last fiddled with by Stargate38 on 20210610 at 23:09 
20210610, 23:27  #205  
"Max"
Jun 2016
Toronto
893_{10} Posts 
Quote:
I credited both of you. Last fiddled with by Max0526 on 20210610 at 23:28 

20210611, 00:57  #206 
"Ben"
Feb 2007
2^{2}·3·293 Posts 
line 103 c199 factors as:
Code:
P76 = 4898445353203033358835060865914937725146210574984871217927446522308970298701 P123 = 760074027570231607044002708206182480265282071391621949720796558088155176608548032700660642236308537183179397780347862834429 
20210611, 02:21  #207 
"Ed Hall"
Dec 2009
Adirondack Mtns
3^{2}×5^{2}×17 Posts 
Line 140 (7,10): c134 factored, c206 ECM'd to t50, c219 in ECM work. . .

20210611, 07:04  #208 
(loop (#_fork))
Feb 2006
Cambridge, England
2·13^{2}·19 Posts 
Line 99 done (c139 split as p54 x p85 in 3h20m walltime on 28thread Skylake)

20210611, 07:20  #209 
(loop (#_fork))
Feb 2006
Cambridge, England
2·13^{2}·19 Posts 
Started 28*36 gmpecm curves at B1=3e8, default B2 on the C253 from [8,8].
That's going to be an extremely difficult SNFS job, my hope for finishing that corner is that ECM breaks off a piece big enough to make it a merely very difficult GNFS job. (quartic SNFS 275ish, which I think is equivalent to sextic SNFS 315ish, since the quartic S246 I did a few years back was comparable sieving effort to an S285 sextic  probably about the same amount of work as M1061, so feasible with concerted grid work for the sieving) Last fiddled with by fivemack on 20210611 at 07:20 
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