20210105, 20:30  #2927 
"Curtis"
Feb 2005
Riverside, CA
2·23·103 Posts 
Sure!
I'm happy to set it up on my publicfacing workstation for a teamCADO job, or we can send it to nfs@home (likely to the 15e queue, it's on the edge of 15e and 16e for GGNFS). WIth 20 cores, that would take me a couple months without help so I would use nfs@home if nobody else has interest in sieving. 
20210105, 21:22  #2928 
Apr 2020
233 Posts 
I'm happy to leave this one to NFS@home unless there's more interest in a quick teamsieve.
We need a polynomial in any case, so I'm starting a CADO run with P=4M, admax=10M, incr=420. Help is welcome, especially from the GPU folks. 
20210106, 01:10  #2929  
Jun 2012
101110100011_{2} Posts 
Quote:
I’m poly searching now using msieveGPU for a baseline c5 < 1M. Msieve suggests a minimum escore of 2.27e14, with an objective escore > 2.61e14. The record scores found to date by MF.org for c189 and c190 are 2.468e14 and 2.261e14 respectively. 

20210106, 14:51  #2930 
Apr 2020
233 Posts 
Nothing exceptional from CADO, but here are the top 5:
Code:
skew: 31667446.08 c0: 635181421872748933108441699486115427125642808 c1: 74986650995391412139123003935796048006 c2: 5961875349757286664581459912419 c3: 124033538748440778455637 c4: 2080272602219742 c5: 18680760 Y0: 2235516949149518804069555918947048165 Y1: 851083597789145288034881 # e 2.335e14 skew: 6738890.865 c0: 3008176798371571134141560458229782623007552 c1: 226612821899130689881043620942034881 c2: 733488110170332116047824761794 c3: 22864302063104231750729 c4: 8149403279819074 c5: 122533320 Y0: 2264547652597322743355287976870206966 Y1: 18766844300990818857555439 # e 2.324e14 skew: 22109171.97 c0: 202107342825054844648166957778664214569163920 c1: 29210070866725397928080934163609660957 c2: 1685787361008931207987042692178 c3: 112491810246834689026289 c4: 4182404656009630 c5: 30723000 Y0: 2792332882301416522214996038614961686 Y1: 1264850521390214572621637 # e 2.297e14 skew: 72790926.102 c0: 537998606088009273834399206094314700384642304 c1: 11403873838887849038978802132395579584 c2: 387595799274961375653764952136 c3: 146542705551392439871246 c4: 126475424055525 c5: 2851380 Y0: 3530821324166114229573825422256974795 Y1: 7269297095861234453870813 # e 2.281e14 skew: 21852141.769 c0: 1312507633656801500515230865305827575845600 c1: 6568918199323513164095534661559716 c2: 9706996449424689305606176538 c3: 22061016894982017880514 c4: 151472083006355 c5: 4528440 Y0: 2583874558914609615325922449259599871 Y1: 5859566905830776616988543 # e 2.252e14 
20210107, 08:42  #2931 
Apr 2010
2^{2}×41 Posts 
My current best poly:
Code:
# norm 2.678191e18 alpha 8.963268 e 2.857e14 rroots 5 skew: 87271318.89 c0: 6381367517597696742295702359937525488210006576 c1: 202288237039298283646164033232164328687 c2: 13346320611031566286558670660366 c3: 32289428163110989016897 c4: 1983739878858060 c5: 3603600 Y0: 3106799826410507065935794801180448266 Y1: 1970023755595084066583 
20210107, 12:10  #2932  
Jun 2012
3^{2}×331 Posts 
Quote:
Anyone planning on further searching? My best so far is < 2.2, not worth reporting. 

20210107, 13:06  #2933  
Apr 2020
233 Posts 
Quote:
I won't be doing any more searching. 

20210107, 15:12  #2934 
"Curtis"
Feb 2005
Riverside, CA
4738_{10} Posts 
15% better than the record? Good 'nuff! I'll get the testsieving done and post it to NFS@home 15e.
Thanks, Gimarel! 
20210107, 18:52  #2935 
"Ed Hall"
Dec 2009
Adirondack Mtns
2·1,847 Posts 
Would there be interest in a spin of Gimarel's poly with the same score (per cownoise), but some slightly different coefficients?:
Code:
Y0: 3106799826973484694619713165056005342 Y1: 1970023755595084066583 c0: 6438085155586451094305181312249920006185364100 c1: 194652502066212678819533374835599698159 c2: 13373029993154413720046858814578 c3: 30018896009608567503617 c4: 1988888918754060 c5: 3603600 skew: 64667535.397 Code:
87179018.38350 2.85703099e14 
20210318, 18:14  #2936 
"Curtis"
Feb 2005
Riverside, CA
1001010000010_{2} Posts 
The C189 from i12574 is factored.
i12575 is a C174 with a T35 complete; I'll have a T45 done in a few hours, and welcome any help at the T50 level. 
20210318, 19:10  #2937 
Apr 2020
233 Posts 
Running some curves at the t50 level now. Will move on to t55 if that's unsuccessful.

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