Polynomial Request Thread - Page 50

XYYXF · 2016-03-15, 02:06

Indeed, a copy-and-paste fault. Thanks Rich!

Dubslow · 2016-03-18, 13:38

Quote:

Originally Posted by yoyo

The C195 from aliquot sequence 4788 is more or less ready for GNFS, and will need hefty amounts of poly select -- exactly how much I'm not sure, but everyone here having at it for a bit is almost certainly not enough anyways.

http://factordb.com/sequences.php?se...20&fr=0&to=100

RichD · 2016-03-20, 14:50

Quote:

Originally Posted by Dubslow

The C195 from aliquot sequence 4788 is more or less ready for GNFS, and will need hefty amounts of poly select -- exactly how much I'm not sure, but everyone here having at it for a bit is almost certainly not enough anyways.

I will start at 10M but it may be a day before I can get to it.

RichD · 2016-03-23, 03:15

Didn't find anything close (i.e., in the expected range) from 10.0M-10.5M.

Jumping to 30M.

RichD · 2016-03-28, 23:28

Not really a good poly but one to set a baseline to beat.

Code:

N: 105720747827131650775565137946594727648048676926428801477497713261333062158444658783837181718187127016255169032147325982158719006483898971407998273736975091062494070213867530300194317862973608499
# expecting poly E from 1.08e-14 to > 1.24e-14
R0: -20235742029690041687577373761152054390
R1: 9267958148582139083
A0: -11267322525486743517923188323192978629784204417
A1: 240114201561699843948709214315614352077
A2: 33878720444898812247193073824610
A3: -414616433728607362030181
A4: 1570407958802871
A5: 31157640
# skew 70621938.15, size 4.414e-19, alpha -7.667, combined = 1.044e-14 rroots = 3

VBCurtis · 2016-03-29, 04:52

I'll join in soon, and try to beat your baseline. Bit busy with Real Life at present.

VBCurtis · 2016-03-30, 04:43

Running from A1 = 500k up. I'll give it a week or more.

RichD · 2016-04-07, 01:56

I ran 30-34M and 38-39M with nothing better than what I posted.
I will be away for a couple weeks.

richs · 2016-04-07, 03:36

Quote:

Originally Posted by richs

An update on my C156 factorization of Aliquot sequence 829332:3605 using a Core2 laptop. I chose the second poly that Curtis found in post #531, and am currently about half-done sieving.

Factorization complete: P65 * P92. Thanks, Curtis, for the poly!

VBCurtis · 2016-04-07, 05:40

Quote:

Originally Posted by richs

Factorization complete: P65 * P92. Thanks, Curtis, for the poly!

you're welcome, Rich.

As for the C195 of current interest, I've run 7 days on the GPU with no poly better than 8.7e-15 yet, about 15% worse than the one posted on this thread. I've run A1 from 500k to 900k, testing various stage1 norms for a day each. I'll report my findings in detail when I stop the run after another week or so, somewhere around A1 = 3M.

unconnected · 2016-04-08, 08:46

I need a poly for C173 from aliquot sequence 933436. The best one I've found so far:

Code:

# norm 9.864941e-17 alpha -8.241116 e 2.511e-13 rroots 5
skew: 191202616.14
c0: -137309084180849800523003669371182082893107440
c1: 5966228778979587215436703014360157980
c2: 200631827586286875134276734967
c3: 537998234336958545883
c4: -5235245082517
c5: 4752
Y0: -5715218781532991478443216207501487
Y1: 525596800402713949

Is this poly good enough? I've spent ~60 thread-hours for poly select.

2016-04-07, 01:56	#547
RichD Sep 2008 Kansas 3391₁₀ Posts	C195 @ i5246 I ran 30-34M and 38-39M with nothing better than what I posted. I will be away for a couple weeks.

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2016-03-15, 02:06	#540
XYYXF Jan 2005 Minsk, Belarus 2⁴·5² Posts	Indeed, a copy-and-paste fault. Thanks Rich!

2016-03-23, 03:15	#543
RichD Sep 2008 Kansas 3,391 Posts	Didn't find anything close (i.e., in the expected range) from 10.0M-10.5M. Jumping to 30M.

2016-03-29, 04:52	#545
VBCurtis "Curtis" Feb 2005 Riverside, CA 1001100001010₂ Posts	I'll join in soon, and try to beat your baseline. Bit busy with Real Life at present.

2016-03-30, 04:43	#546
VBCurtis "Curtis" Feb 2005 Riverside, CA 11412₈ Posts	Running from A1 = 500k up. I'll give it a week or more.