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Old 2021-01-11, 20:54   #1970
swellman
 
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Quote:
Originally Posted by Gimarel View Post
I have a poly:
Code:
# norm 5.369906e-18 alpha -8.489995 e 4.380e-14 rroots 5
skew: 64415524.93
c0: -950283759038144268177888905980038988538739075
c1: 115292521977799490543259931429188845873
c2: -654161154523991992475330245499
c3: -75995595926236972418569
c4: -1886341444770
c5: 5405400
Y0: -625012870636650963070156088144445318
Y1: 1074153717873160635929
That’s not a poly, that’s a work of art. Holy e-score Batman!

I’m continuing to search but...
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Old 2021-01-11, 23:00   #1971
VBCurtis
 
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Beats the record by 15%, again. That's a full digit of difficulty. Nice!

Rather than try to beat that result, a quick msieve search for the C191 suddenly available in the Cunningham Project subforum would be nice. I think Charybdis and I plan to finish poly select Tuesday night, with sieving starting Wednesday. Any efforts there are appreciated.

Edit: Thread-link: https://mersenneforum.org/showthread...019#post569019

Last fiddled with by VBCurtis on 2021-01-11 at 23:02
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Old 2021-01-12, 18:13   #1972
swellman
 
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Default C189 Search Terminated

I’m done searching. Will post Gimarel’s record poly score in a day or two unless someone else informs me they are hunting polys.
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Old 2021-03-07, 16:01   #1973
swellman
 
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Lightbulb C202_147_116

From the XYYXF project, this composite has finally finished ECM. It is best factored with GNFS.

Code:
 5028644179505187599603747538081421960747784682907318641913584612912678359414156769454889474663347482684867898378667888076903161202663931121263093390440600128001619421159410735829104594957821918650859551
Msieve is looking for 3.69e-15 to > 4.25e-15.

Best e-score to date for a C202 is 3.93e-15. While there is no existing record for a C203, it can be interpolated as 3.29e-15.

I’ve been searching with msieve-GPU, in the ranges c5 < 500k and 15M < c5 < 17M, but my best e-score to date is a measly 2.94e-15.

Any help greatly appreciated. I’m continuing to search in the range 17-18M.

Thank you!

Code:
# norm 7.148369e-20 alpha -7.249047 e 2.940e-15 rroots 5
skew: 1764891715.85
c0: -140056825075275186819066968291408480128912448489549
c1: 1330874475970439336016304730446127518491928
c2: 3882763618949115830920846516688526
c3: -1199788658671256940245746
c4: -1193980216059583
c5: 121212
Y0: -2106595042876157484161687884231245828978
Y1: 17827614248279432189

Last fiddled with by swellman on 2021-03-07 at 16:10
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Old 2021-03-07, 20:26   #1974
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I'll see what I can do.
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Old 2021-03-21, 07:25   #1975
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I had hoped for something better, but nothing turned up. Here's the best I found:
Code:
# norm 9.850693e-20 alpha -7.665176 e 3.712e-15 rroots 3
skew: 14142269.78
c0: -727972983648726310410079785358393410334322288
c1: 283067213304939263382818921662306595494
c2: 13924751598100321978661105476159
c3: -4388759942722476709817991
c4: -241003407561175168
c5: 4237833600
Y0: -581432102790414830705315679249665723910
Y1: 24941597758289547861913
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Old 2021-03-21, 12:01   #1976
swellman
 
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Quote:
Originally Posted by Gimarel View Post
I had hoped for something better, but nothing turned up. Here's the best I found:
Code:
# norm 9.850693e-20 alpha -7.665176 e 3.712e-15 rroots 3
skew: 14142269.78
c0: -727972983648726310410079785358393410334322288
c1: 283067213304939263382818921662306595494
c2: 13924751598100321978661105476159
c3: -4388759942722476709817991
c4: -241003407561175168
c5: 4237833600
Y0: -581432102790414830705315679249665723910
Y1: 24941597758289547861913
Thank you very much!
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