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Old 2020-07-24, 14:21   #1931
Max0526
 
"Max"
Jun 2016
Toronto

2BD16 Posts
Default a record C202 poly

Quote:
Originally Posted by Gimarel View Post
Just a very short search, the skew might be a bit high:
Code:
# norm 1.047240e-19 alpha -8.729509 e 3.833e-15 rroots 3
skew: 301762739.19
c0: 11215564356883882066951177962632449810312829387024
c1: 33903565023883164855853110645782973572830
c2: -790148174478611179128138965393271
c3: -3300739620613135971563881
c4: 12135194589797968
c5: 17297280
Y0: -1139447368728689380505665914517437650010
Y1: 23552399837075576617127
Thank you so much, Gimarel! Your poly is already a record for C202!
Some msieve spinup gives us three more branches, all with better score and lower skew:
Code:
Y0: -569723684380800940438196359245718396921
Y1: 70657199511226729851381
c0: 103394935622210316241163667133894195533223700664
c1: 2005134862565171054958260583228432033199
c2: -258722981282823408955980872471445
c3: -6736467009189155856979666
c4: 144172045327866816
c5: 1245404160
skew: 50335474.00
# size 8.799e-20, alpha -8.773, combined = 3.886e-15 rroots = 3
Code:
Y0: -1139447368751799819559798767939344261855
Y1: 70657199511226729851381
c0: 414131087027277212157446839829339648182128763662
c1: 3938291917498509565022621869510130631725
c2: -260120609989173973537888949539122
c3: -3348202989227515489205801
c4: 36150993321281904
c5: 155675520
skew: 100726238.04
# size 8.670e-20, alpha -8.730, combined = 3.875e-15 rroots = 3
Code:
Y0: -569723684377346321534893787818671442815
Y1: 23552399837075576617127
c0: 2794293524269220746715175478746028597050519904406
c1: 17818085759473785140805573263475914913275
c2: -779127010445204126925815826873891
c3: -6708241414872242607368402
c4: 48158833660055872
c5: 138378240
skew: 150814524.18
# size 8.793e-20, alpha -8.773, combined = 3.843e-15 rroots = 3
Plus two subrecord scores for the history:
Code:
Y0: -569723684386953204114037893067337843353
Y1: 117761999185377883085635
c0: 22295171690901223866631583658704258975726662248
c1: 738013074781171311042960984639673808511
c2: -154174054960246606554915462612915
c3: -6786585981782642618136274
c4: 239383076954615360
c5: 3459456000
skew: 30211600.90
# size 7.360e-20, alpha -8.237, combined = 3.470e-15 rroots = 3
Code:
Y0: -1139447368757019102020894226944429456436
Y1: 117761999185377883085635
c0: 89389171428363716256593894583550720559660804920
c1: 1431599780352424578990034597819771586998
c2: -155626473154169367483163573162977
c3: -3358876052995649107933417
c4: 60155827306973840
c5: 432432000
skew: 60449363.15
# size 7.252e-20, alpha -8.193, combined = 3.461e-15 rroots = 3
And there is still a chance that my CADO will spin it up even higher. My bet so far is on alpha -8.730 --> -8.773, combined = 3.875e-15 --> >3.886e-15.
Thank you again, Gimarel! I will send "Gimarel/spin" record to swellman soon.
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