20171114, 16:53  #45 
Basketry That Evening!
"Bunslow the Bold"
Jun 2011
40<A<43 89<O<88
1110000110101_{2} Posts 
Looks like ryanp, or so I assume, has pushed this multiple dozen lines past the most recent thread update. Currently a C205 at index 2122. In particular, index 2121 splits as:
6212003055...94<211> = 2 · 3 · 7 · 1060027307...87<72> · 1395292684...11<139> Where the timestamps on the left side are ~September 4th, while the primes on the right are timestamped with ~September 12 (same as the current line). I assume that has to be a lucky ECM hit, because AFAICT, not even ryanp could NFS a ~C211 in a week. I'm not quite sure what index was the former C206 of discussion here. Several lines in the DB are timestamped with early August, which is inconsistent with ryanp's most recent post. 
20180116, 06:48  #46 
Sep 2008
Kansas
2^{3}·461 Posts 
C205 @ i2122
I see yoyo is partially through a t55 run. I can't imagine the resources needed should there not be an ECM hit.

20180215, 05:54  #47 
Basketry That Evening!
"Bunslow the Bold"
Jun 2011
40<A<43 89<O<88
3·29·83 Posts 

20180215, 06:25  #48 
"Curtis"
Feb 2005
Riverside, CA
1010101110011_{2} Posts 
I think the Bayesian tool floating around these parts is more accurate than the old rules of thumb, but since I don't have the tool handy I'll speculate:
0.31 * 205 = 63.5 digits, where 63 digits is really close to half a t65. So, I'd do half a t65, and then a few hundred (a thousand?) speculative curves at t70 level while doing poly select at the same time. I think the Bayesian tool would move up to 2.9e9 curves presently to finish the rest of the fraction of t65 that's left. Poly select should be a serious undertaking. I'm willing to donate a GPUmonth at minimum, though not immediately. I'm also willing to try CADO, though not as seriously ('cause CPU time is more precious than GPU time). Does anyone care to confirm or disagree that deg 6 is worth some effort, even though 205 is likely still best at deg 5? 
20180215, 11:57  #49 
Apr 2010
2^{2}×59 Posts 
The C216 of 3^766+1 was still degree 5, so I disagree.

20180215, 13:08  #50  
I moo ablest echo power!
May 2013
17·107 Posts 
Quote:
Quote:


20180225, 14:31  #51 
Basketry That Evening!
"Bunslow the Bold"
Jun 2011
40<A<43 89<O<88
3·29·83 Posts 
yoyo@home has completed 22K@850M.

20180318, 23:48  #52 
Sep 2008
Kansas
E68_{16} Posts 
C205 @ i2122
Just a timestamp placeholder, ECM is completing at yoyo@Home and will soon be ready for poly selection. 22K @ 850e6 followed by 11K @ 2900e6. In case we forget and move on to more important numbers.

20180321, 02:02  #53 
"Curtis"
Feb 2005
Riverside, CA
1010101110011_{2} Posts 
I gave CADO the adrange 0 to 1e4 on degree 6 to see what it would turn up:
Code:
R0: 3354915467468925449144417001544070 Tue Mar 20 18:59:33 2018 R1: 1059264301675097949551 Tue Mar 20 18:59:33 2018 A0: 5491105381231820158278184320361978075589802 Tue Mar 20 18:59:33 2018 A1: 72595406437213271949280761939448929921 Tue Mar 20 18:59:33 2018 A2: 2573347630809788149132945021820408 Tue Mar 20 18:59:33 2018 A3: 304316465030583397390963971 Tue Mar 20 18:59:33 2018 A4: 1611344929661896554242 Tue Mar 20 18:59:33 2018 A5: 28111736477664 Tue Mar 20 18:59:33 2018 A6: 1663200 Tue Mar 20 18:59:33 2018 skew 1367862.47, size 5.175e15, alpha 9.503, combined = 1.597e15 rroots = 6 I don't think it will be difficult to crush this with deg 5, and I got to entertain my "it's fun to play with deg 6" impulse. 
20180328, 05:28  #54 
"Max"
Jun 2016
Toronto
2^{5}×29 Posts 
@VBCurtis
I'll spin the above poly just to see what falls out and let you know. 
20180329, 02:23  #55 
"Max"
Jun 2016
Toronto
2^{5}×29 Posts 
Just for a baseline. And look at this alpha.
Code:
R0: 6709829520299909389910598259273599 R1: 1059264301675097949551 A0: 10749655986314933365087770314170711558554086966160 A1: 605296494786174803296166070659199958758476 A2: 199216364276574487467150687385303144 A3: 3864338940017491067769623243 A4: 753181793331327212341 A5: 8693825592816 A6: 207900 skew 21442424.05, size 5.345e015, alpha 11.416, combined = 1.675e015 rroots = 6 Last fiddled with by Max0526 on 20180329 at 02:23 
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