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Old 2021-07-27, 06:48   #2036
frmky
 
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Quote:
Originally Posted by frmky View Post
Here's an early hit for 2,2870M.
Here's a small improvement. I'll wrap my search up tomorrow.
Code:
n: 12716446239242105384495886223778969972137929286896767990486922119587563031946761939676139388232272824975631515451161724723244328908683599379523797308580938394307415777602492415472684926177574622941
# norm 2.858935e-19 alpha -7.219997 e 7.064e-15 rroots 3
skew: 75250791.44
c0: 26913516707329654192283833980530533858675156663
c1: -1893934506870148376545067830820830533385
c2: -43951845868939135452776824292173
c3: 564611916737788296836629
c4: 4259976221995686
c5: 35384580
Y0: -51417427325330586782804871082988414250
Y1: 2930519815909127317
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Old 2021-07-27, 22:07   #2037
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Quote:
Originally Posted by frmky View Post
Here's a small improvement. I'll wrap my search up tomorrow.
Code:
# norm 2.858935e-19 alpha -7.219997 e 7.064e-15 rroots 3
An overnight search on 2,2870M found another about the same e-score, but nothing better.
Code:
n: 12716446239242105384495886223778969972137929286896767990486922119587563031946761939676139388232272824975631515451161724723244328908683599379523797308580938394307415777602492415472684926177574622941
# norm 2.892498e-19 alpha -7.547836 e 7.053e-15 rroots 3
skew: 90621262.19
c0: 33450210539163526878538437359401444070192149875
c1: -1965042873560429650683612689981193006405
c2: -108828692890915253524417555046033
c3: 1577041094271479570680034
c4: 9967291504286857
c5: 20714820
Y0: -57229100395513161590571461270255481946
Y1: 3225613829252501137
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Old 2021-07-28, 15:48   #2038
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Default 2,2870M

msieve-GPU found nothing worth reporting.

CADO searching 1e4 to 5e5:
Code:
n: 12716446239242105384495886223778969972137929286896767990486922119587563031946761939676139388232272824975631515451161724723244328908683599379523797308580938394307415777602492415472684926177574622941
skew: 141312319.956
c0: 289616728795161276347429639007947104391446075392
c1: -9107829280597375253342918619991334947496
c2: -110139325748820166825376793701546
c3: 523651233131473396532827
c4: 1402659067644198
c5: 6279000
Y0: -121359111102135572712229813004437287967
Y1: 70909389521660928448533359
# MurphyE (Bf=8.590e+09,Bg=4.295e+09,area=2.684e+16) = 7.869e-09
# f(x) = 6279000*x^5+1402659067644198*x^4+523651233131473396532827*x^3-110139325748820166825376793701546*x^2-9107829280597375253342918619991334947496*x+289616728795161276347429639007947104391446075392
# g(x) = 70909389521660928448533359*x-121359111102135572712229813004437287967
# skew 141312319.96, size 2.236e-019, alpha -7.890, combined = 6.859e-015 rroots = 3 [per msieve]
Next search over range 5e5 to 5e6 starting shortly.
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Old 2021-07-31, 11:47   #2039
swellman
 
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Best poly in CADO search for 2,2870M is a disappointing result:

Code:
n: 12716446239242105384495886223778969972137929286896767990486922119587563031946761939676139388232272824975631515451161724723244328908683599379523797308580938394307415777602492415472684926177574622941
skew: 43348497.464
c0: 40855118731654035842262809048743982330269475318
c1: -1094949026897670297927630889808239973023
c2: -163145356197913949524196834578714
c3: 1301912412172188566776633
c4: 58342097351825846
c5: -84444360
Y0: -82900476455085364034904651344599900728
Y1: 4606708025219729509062929
# MurphyE (Bf=8.590e+09,Bg=4.295e+09,area=2.684e+16) = 7.484e-09
# f(x) = -84444360*x^5+58342097351825846*x^4+1301912412172188566776633*x^3-163145356197913949524196834578714*x^2-1094949026897670297927630889808239973023*x+40855118731654035842262809048743982330269475318
# g(x) = 4606708025219729509062929*x-82900476455085364034904651344599900728
Cownoise says 6.389e-15, too small for spin.

Next up searching 5-15M.
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Old 2021-08-01, 10:25   #2040
Gimarel
 
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Default 2,2870M

After a very short search (<50min) I found this:
Code:
# norm 3.637643e-19 alpha -8.509163 e 8.249e-15 rroots 5
skew: 81871767.80
c0: -78411619948201864034535871302357484417160067342
c1: 998462745858513086158154802331248189365
c2: 101397072276900316025004922340340
c3: -476465337444971632200875
c4: -20130771338658108
c5: 21621600
Y0: -93267822608184678375030061229117437755
Y1: 3030690500951458261099
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Old 2021-08-01, 12:12   #2041
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Quote:
Originally Posted by Gimarel View Post
After a very short search (<50min) I found this:
Code:
# norm 3.637643e-19 alpha -8.509163 e 8.249e-15 rroots 5
skew: 81871767.80
c0: -78411619948201864034535871302357484417160067342
c1: 998462745858513086158154802331248189365
c2: 101397072276900316025004922340340
c3: -476465337444971632200875
c4: -20130771338658108
c5: 21621600
Y0: -93267822608184678375030061229117437755
Y1: 3030690500951458261099
Nice! A new record e-score for C197. Pulling the plug on my own search.
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Old 2021-08-01, 22:37   #2042
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Quote:
Originally Posted by Gimarel View Post
After a very short search (<50min) I found this:
Great find! I've posted it for sieving.
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Old 2021-10-09, 15:47   #2043
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(86^131+1)/11048064563773177559010869024617874556980700741445586748300049507664125260147 from the Brent tables (178 digits):
Code:
2376899992940108696949729177390111711767024769817071015838487081262665016718121810631622614868096204064419242664275940966098859927923372954151108069060179514011227453205840010171
I've built SNFS polys for this, the e-scores are 7.215e-14 for degree 5 and 1.174e-13 for degree 6. Which are worse than the record for c178 (1.583e-13). But I doubt I could find one that good. Would anyone like to try?
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Old 2021-10-09, 16:19   #2044
swellman
 
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Quote:
Originally Posted by chris2be8 View Post
(86^131+1)/11048064563773177559010869024617874556980700741445586748300049507664125260147 from the Brent tables (178 digits):
Code:
2376899992940108696949729177390111711767024769817071015838487081262665016718121810631622614868096204064419242664275940966098859927923372954151108069060179514011227453205840010171
I've built SNFS polys for this, the e-scores are 7.215e-14 for degree 5 and 1.174e-13 for degree 6. Which are worse than the record for c178 (1.583e-13). But I doubt I could find one that good. Would anyone like to try?
I can help but unfortunately not until Monday or Tuesday.
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Old 2021-10-09, 16:50   #2045
Plutie
 
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I'll see what I can get, give me a few hours.
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Old 2021-10-09, 16:55   #2046
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I can try but no garanties.


I have an early 9 something e-14 for degree 5

Last fiddled with by firejuggler on 2021-10-09 at 17:12
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