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Old 2021-06-12, 19:57   #1981
unconnected
 
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May 2009
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Hello, guys, could anyone help to find a reasonable poly for this C178:
Code:
5010968787585504607949192210942377079379285178590004729749207487507787040684433640392691082409304410877720888569557186261540033154512666518900413521876524079689418720554031235001
My best poly so far (search continues)
Code:
# norm 2.144489e-17 alpha -6.501390 e 1.001e-13 rroots 3
 skew: 48152632.85
c0: 11405273828788084151515258906818712576380275
c1: -105069570601368313955286408617688830
c2: 5640926833725161267747735118
c3: -781934179351926038383
c4: -41085132557966
c5: 144300
Y0: -32220411086288134966909424975709126
Y1: 4938884847181032223
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Old 2021-06-13, 14:52   #1982
EdH
 
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"Ed Hall"
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Adirondack Mtns

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I'm running Max's spin on your poly and one of the returns seems to have a slightly better score:
Code:
n: 5010968787585504607949192210942377079379285178590004729749207487507787040684433640392691082409304410877720888569557186261540033154512666518900413521876524079689418720554031235001
skew: 3881361.333
c0: -2944202731800882118576731757210220559437
c1: -3313424242648592657030320503043987
c2: -710560917392786210489644113
c3: 1068991642361809268335
c4: 39804926045966
c5: -144300
Y0: -32220411077524735738386511192249062
Y1: 4938884847181032223
cownoise skew and score:
Code:
10611084.65166    1.08968133e-13
But, no really impressive gain.
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Old 2021-06-14, 11:37   #1983
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Default C178

I’m searching 6-7M range (msieve-GPU).
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Old 2021-06-14, 23:55   #1984
RichD
 
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Sep 2008
Kansas

17·199 Posts
Default C178

A little bit better. Perhaps a spin can help. I'll try some more.
Code:
R0: -17467637079557843436773638052628497
R1: 63716503756052147
A0: -5078990591524178054306751588167218417234920
A1: 884909406464721799010929364291318154
A2: 86906444650681746149140647991
A3: -3637909130809521094690
A4: -72306633109712
A5: 3081420
skew 24140805.75, size 2.043e-17, alpha -7.213, combined = 1.106e-13 rroots = 3
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Old 2021-06-15, 11:32   #1985
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Quote:
Originally Posted by swellman View Post
I’m searching 6-7M range (msieve-GPU).
Nothing better found - now searching 7-9M.
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Old 2021-06-16, 00:17   #1986
RichD
 
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Sep 2008
Kansas

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Default c178

Maybe another one that could spin.
Code:
R0: -18905540219797057924081860527067588
R1: 38263807967161109
A0: 804217205712411414341558724039846645137305
A1: 1120179282313742756652451235732136539
A2: 383549562426318450078521706261
A3: -14297015337398363473739
A4: -530297524893166
A5: 2074800
skew 24943745.71, size 1.922e-17, alpha -7.847, combined = 1.032e-13 rroots = 3
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Old 2021-06-16, 14:26   #1987
RichD
 
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Kansas

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Default c178

And one more for a spin.
Code:
R0: -18832158089617501615128541611441868
R1: 1348005923413451
A0: 163723925108262716041212786436126825571287407
A1: 1421407136294048513387950350705400503
A2: -438764951370486734606490543739
A3: 4872428041874284530877
A4: 123031344935892
A5: 2115540
skew 45268858.15, size 1.988e-17, alpha -8.739, combined = 1.081e-13 rroots = 1
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Old 2021-06-16, 20:52   #1988
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Quote:
Originally Posted by RichD View Post
Maybe another one that could spin.
Code:
R0: -18905540219797057924081860527067588
R1: 38263807967161109
A0: 804217205712411414341558724039846645137305
A1: 1120179282313742756652451235732136539
A2: 383549562426318450078521706261
A3: -14297015337398363473739
A4: -530297524893166
A5: 2074800
skew 24943745.71, size 1.922e-17, alpha -7.847, combined = 1.032e-13 rroots = 3
My version of Max's spin for this one got nothing better. I'll try the next. . .
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Old 2021-06-16, 21:09   #1989
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Don't forget the 1.10 score in post #1984. I will be wrapping up my search in the next few hours.
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Old 2021-06-16, 23:43   #1990
swellman
 
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Default C178

Quote:
Originally Posted by swellman View Post
Nothing better found - now searching 7-9M.
Searching 7-9M yielded a score just over 1.03e-13, in other words junk.

Search continuing over range 9-12M.

ETA: Next results expected Saturday morning.

Last fiddled with by swellman on 2021-06-17 at 01:55
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Old 2021-06-18, 16:59   #1991
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Code:
 # norm 2.450722e-17 alpha -6.788325 e 1.087e-13 rroots 3
skew: 8466999.21
c0: -31576596726621962067270534349937895116081
c1: 1015686712479942693505549488002097
c2: 34734866555144288126282587943
c3: -2393560759959623745597
c4: 160136574165150
c5: 9975888
Y0: -13810011066288482204314630252250466
Y1: 40409896612564589
Still can’t crack 1.1e-13! Maybe it can be spun up…

Continuing to plug away with msieve-GPU, but I’ll try some CADO in a few days once one of my machines finishes another job.
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