20230129, 17:32  #2366  
Jun 2012
3×1,327 Posts 
Quote:
I did not post the timing data, as that machine was 80% tasked with other work in the background but finished it (unnoticed by me) in the middle of test sieving, making the timing data almost worthless. But we’re likely dealing with very slight differences in speed between the unspun and spun polynomials, and that possibly lost in the noise anyway. Last fiddled with by swellman on 20230129 at 17:33 

20230513, 11:02  #2367 
Jun 2012
F8D_{16} Posts 
Looking for a polynomial for the Lucas number L1988, a GNFS 188 composite:
Code:
n: 30621103012515081353750807219422658706831098484581463519835986792690700483098305033782194085302987276443501924986880592636881178436631787193570743153622164247274539051101271632415418137169 skew: 152920291.960 c0: 33770460483394841783859850729041379766493112359 c1: 2105278616090789260637010890121863701305 c2: 14885696995170332686136290940443 c3: 264905171361148262665561 c4: 341146513051002 c5: 1455336 Y0: 1839126116432793058726868199199026896 Y1: 68304675917372983 # lognorm 60.54, E 52.11, alpha 8.43 (proj 2.12), 5 real roots # MurphyE(Bf=1.000e+07,Bg=5.000e+06,area=1.000e+16)=2.697e14 Best poly cownoise values: 178913008.93141 2.70469118e14 Any assistance appreciated. I am continuing my search with msieveGPU up to c5=5M. No CADO based search has been attempted to the best of my knowledge. 
20230517, 11:29  #2368 
Apr 2010
2·131 Posts 
Finally had some time:
Code:
# norm 3.279641e18 alpha 7.583082 e 3.260e14 rroots 5 skew: 36022812.93 c0: 39570186980562070039514832528084761841020958 c1: 10554305803462188772625823661305925047 c2: 1315473575206741979161782619478 c3: 12884569821197576225783 c4: 1007078470396344 c5: 5765760 Y0: 1842658399546343513928002223756875242 Y1: 2551224760188697247737 
20230517, 12:17  #2369  
Jun 2012
3·1,327 Posts 
Quote:


20230524, 20:20  #2370 
Apr 2020
2^{2}×3×5×17 Posts 
c197
One from the 16esmall "virtual queue". 6,545+ c197 SmallerbutNeeded has finished ECM with Yoyo and now needs a polynomial:
Code:
39191073799961411696044424466410018846557222545807791055784834508101626096490967293719171041952431051961735670859734824253828377186668135820546773233730413838142488501266199783260574819034216468391 
20230525, 16:06  #2371 
Jun 2012
7615_{8} Posts 
I’m searching with CADO on my i7, starting at 1M, 210/840 and nq=5^7.

20230526, 21:53  #2372 
"Ed Hall"
Dec 2009
Adirondack Mtns
2^{2}·7·197 Posts 
It's below Msieve's expectation, but here's a CADONFS start:
Code:
n: 39191073799961411696044424466410018846557222545807791055784834508101626096490967293719171041952431051961735670859734824253828377186668135820546773233730413838142488501266199783260574819034216468391 Y0: 100545081916953810581480319784462430254 Y1: 64674559417589227915289 c0: 182933835154476198261273211226584088994919495584 c1: 6090139632998328889429625709342608131247 c2: 74727424575775775667269334446662 c3: 3542494818350480555690989 c4: 6772971822239616 c5: 53396280 skew: 87099993.953 # lognorm 62.84, E 53.99, alpha 8.85 (proj 2.31), 3 real roots # MurphyE(Bf=1.000e+07,Bg=5.000e+06,area=1.000e+16)=7.402e15 Best poly cownoise values: 117356096.48735 7.44726176e15 
20230527, 10:18  #2373 
Apr 2010
2·131 Posts 
I can't do more search because it's getting to warm.
Code:
# norm 4.105896e19 alpha 7.332980 e 8.836e15 rroots 5 skew: 53308837.32 c0: 235114798492256124230662488509932926733683216 c1: 25131676607531224436383936962795184855 c2: 16293240959439666145345900786262 c3: 335182476531489028611187 c4: 5571508404306108 c5: 4324320 Y0: 112631499031811918074622308409721551282 Y1: 2623134752083198764781 
20230527, 11:22  #2374 
Apr 2020
2^{2}·3·5·17 Posts 

20230527, 11:46  #2375 
Jun 2012
3·1,327 Posts 
Overnight my CADO search found a 5handle, too low to dwell on. I’m done with this search.
I’ll update the record table with Gimarel’s result. 
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