20210605, 17:29  #45  
"Max"
Jun 2016
Toronto
19·47 Posts 
Quote:
Code:
(8, 8) c164 / snfs170 > poly 1 n: 27549552870024775309360384412644717396669398352814962054008616304874281405758638638960912648483669596008669328950259534837026658885477281773175396278146092059822187656639 # a = 3301440445505588929477052131630608105022609/442675858149281183384208121008685306143552 Y0: 3301440445505588929477052131630608105022609 Y1: 442675858149281183384208121008685306143552 # poly x^4  24*x^3 + 152*x^2  336*x + 196 c0: 196 c1: 336 c2: 152 c3: 24 c4: 1 skew: 4.78932 # E = 1.20623162e10 < better poly  (8, 8) c164 / snfs170 > poly 2 n: 27549552870024775309360384412644717396669398352814962054008616304874281405758638638960912648483669596008669328950259534837026658885477281773175396278146092059822187656639 # a = 10715159090359249371581537533171068163138807/3504149883966209575264647416200419067040354 Y0: 10715159090359249371581537533171068163138807 Y1: 3504149883966209575264647416200419067040354 # poly x^4  24*x^3 + 152*x^2  336*x + 196 c0: 196 c1: 336 c2: 152 c3: 24 c4: 1 skew: 3.46114 # E = 8.94678578e11 

20210605, 17:33  #46 
May 2009
Russia, Moscow
2^{5}·3^{4} Posts 
I tried to generate poly file for c133 from (4, 7) but something went wrong:
Code:
n: 2749457614794647262361879796428445127945722605794673602589457472453080969513005299239408449216604361609226167561990719027188445142241 skew: 3.43469 c0: 196 c1: 336 c2: 152 c3: 24 c4: 1 Y0: 5554601221033173772912866296770856709982 Y1: 1863589942627684233365918164244430623163 Code:
> Warning: evaluated polynomial value 141148146159378749246764684024815706538491155185674289109980978257351523181783126120960791861967660218875168856495053062518077245875473744121445687183090267116 is negative or zero. > This is at least a little strange. > Error: evaluated polynomial value 141148146159378749246764684024815706538491155185674289109980978257351523181783126120960791861967660218875168856495053062518077245875473744121445687183090267116 is not a multiple of n! Last fiddled with by unconnected on 20210605 at 17:33 
20210605, 17:45  #47  
"Max"
Jun 2016
Toronto
19·47 Posts 
Quote:


20210605, 17:54  #48 
"Ed Hall"
Dec 2009
Adirondack Mtns
3,823 Posts 
Ok, I'm at a loss! I ran CADONFS with the first poly and it crashed during the Square Root phase. So, I ran Msieve on the relations and it gave up, too:
Code:
Sat Jun 5 13:36:01 2021 lanczos halted after 3190 iterations (dim = 201552) Sat Jun 5 13:36:01 2021 lanczos error: only trivial dependencies found 
20210605, 17:58  #49 
Romulan Interpreter
Jun 2011
Thailand
3·13^{2}·19 Posts 
Thanks, the c113 is done, and c142 survived a
The c164 is in ecm, about one hour or two to go. Last fiddled with by LaurV on 20210605 at 18:00 
20210605, 18:16  #50 
"Ed Hall"
Dec 2009
Adirondack Mtns
3,823 Posts 

20210605, 20:09  #51  
"Ed Hall"
Dec 2009
Adirondack Mtns
3,823 Posts 
Quote:
Code:
# 195: N = 1220320980954814707143144710823160347283886398771046495382862573956880261463684223833837644743260069843547863559837 # 195: B1 = 43000000 # 195: #curves = 1960 # 019: curve 0 found factor 34840634210713925164876991440244213 using sigma 1:2498375964 # 066: curve 0 found factor 34840634210713925164876991440244213 using sigma 1:2520929826 # 196 curves done (10.0%) Results: 1220320980954814707143144710823160347283886398771046495382862573956880261463684223833837644743260069843547863559837 = 35025796992511431933842456763296474140730986971108376518054629586885193816771849 * 34840634210713925164876991440244213 

20210605, 21:18  #52 
Dec 2017
3·23 Posts 
I will factor the composites for (4, 8) : line 84

20210605, 22:38  #53 
May 2009
Russia, Moscow
2^{5}×3^{4} Posts 
c123 from (2, 7) and c151 from (4, 7) are done.

20210606, 01:34  #54  
"Max"
Jun 2016
Toronto
19·47 Posts 
Quote:
What a story! Thank you for not giving up! I had the same problem with CADO while working on Figure 2 plot for the same paper. When SNFS 170 failed in the root phase, I transferred all the raw relations to msieve and it finished the job. Guess it was lucky. 

20210606, 02:02  #55  
"Max"
Jun 2016
Toronto
19×47 Posts 
Quote:
Code:
(8, 8) c142 / snfs170 > poly 1 n: 8634770279589004036827356194912393863312537850732467598999417776716562536604195298669883428901982312090588445191732185912646256178539679210299 # a = 3301440445505588929477052131630608105022609/442675858149281183384208121008685306143552 Y0: 3301440445505588929477052131630608105022609 Y1: 442675858149281183384208121008685306143552 # poly x^4  6*x^3 + 17*x^2  84*x + 196 c0: 196 c1: 84 c2: 17 c3: 6 c4: 1 skew: 4.62503 # E = 1.35994355e10 < better poly  (8, 8) c142 / snfs170 > poly 2 n: 8634770279589004036827356194912393863312537850732467598999417776716562536604195298669883428901982312090588445191732185912646256178539679210299 # a = 10715159090359249371581537533171068163138807/3504149883966209575264647416200419067040354 Y0: 10715159090359249371581537533171068163138807 Y1: 3504149883966209575264647416200419067040354 # poly x^4  6*x^3 + 17*x^2  84*x + 196 c0: 196 c1: 84 c2: 17 c3: 6 c4: 1 skew: 3.49196 # E = 1.00951550e10 

Thread Tools  
Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
factoring 2ⁿ2 equivalent to factoring 2ⁿ1(I think)  baih  Miscellaneous Math  9  20200921 07:11 
OpenCL GPU P1 Factoring and ECM Factoring  xx005fs  GPU Computing  3  20181027 14:49 