Reserved for MF - Sequence 4788 - Page 65

jrk · 2009-12-30, 22:42

In case the 4788.2506 c143 becomes a GNFS job, here is a suitable poly found with msieve gpu:

Code:

n: 24974657531872376085838030641699839995405167943859266286028403658435682652095566362402178295861538671288908969271773700577295839144850244114869
# norm 7.961807e-14 alpha -8.145651 e 1.414e-11
skew: 1613652.80
c0:  340516645262140382561175929181715365
c1: -1763115921633023433555838517679
c2:  2118523674580323342514219
c3:  1313252203163147779
c4: -212609990864
c5:  125580
Y0: -2882149484802647693732699854
Y1:  13513713595733423
rlim: 12500000
alim: 12500000
lpbr: 28
lpba: 28
mfbr: 56
mfba: 56
rlambda: 2.6
alambda: 2.6

Sieve with 14e from Q=5M to about Q=17M.

dekcarki · 2009-12-31, 05:28

280 @ 43e6 no factor

10metreh · 2009-12-31, 08:44

I guess we'll need a bit more than t45. t45 is 4480 curves at 11e6 or 1277 at 43e6. So I suggest maybe 1500-2000 curves at 43e6.

henryzz · 2009-12-31, 09:01

P-1 run to 1e10 with B2 of 1e15
i can run further B2 if anyone thinks it worthwhile
each further 1e15 will take about 50 minutes but increasing B2 only really increases the chance of finding small factors that would already have been removed by ecm

Andi47 · 2009-12-31, 17:07

617@11e6, no factor.

jrk · 2009-12-31, 20:49

Quote:

Originally Posted by jrk

In case the 4788.2506 c143 becomes a GNFS job, here is a suitable poly found with msieve gpu:

I am going to do a little more poly searching.

unconnected · 2009-12-31, 21:41

1000@11e6 will be done in 6 hours.

jrk · 2010-01-01, 04:29

Quote:

Originally Posted by jrk

I am going to do a little more poly searching.

Didn't find any improvement. I think the one above is still good enough.

unconnected · 2010-01-01, 04:48

Quote:

Originally Posted by unconnected

1000@11e6 will be done in 6 hours.

Done. No factors found.

schickel · 2010-01-01, 08:05

I just want to wish everyone a Happy New Year and offer my thanks for all the cycles that everyone has contributed over the last nine months to this particular project.

I certainly never imagined that there would be enough interest (and horsepower) to push this sequence up to 170+ digits. Here's hoping that we can keep this going for at least a couple more digits!

PS. Countdown to 9000 lines for 314718: 34 lines!

That means only 1034 lines to 10000, 10metreh!

Andi47 · 2010-01-01, 20:07

232@43e6, no factor.

2010-01-01, 08:05	#714
schickel "Frank <^>" Dec 2004 CDP Janesville 100001001010₂ Posts	Happy New Year and thanks! I just want to wish everyone a Happy New Year and offer my thanks for all the cycles that everyone has contributed over the last nine months to this particular project. I certainly never imagined that there would be enough interest (and horsepower) to push this sequence up to 170+ digits. Here's hoping that we can keep this going for at least a couple more digits! PS. Countdown to 9000 lines for 314718: 34 lines! That means only 1034 lines to 10000, 10metreh!

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2009-12-31, 05:28	#706
dekcarki Aug 2009 Magdeburg, Germany 61 Posts	280 @ 43e6 no factor

2009-12-31, 08:44	#707
10metreh Nov 2008 2×3³×43 Posts	I guess we'll need a bit more than t45. t45 is 4480 curves at 11e6 or 1277 at 43e6. So I suggest maybe 1500-2000 curves at 43e6.

2009-12-31, 09:01	#708
henryzz Just call me Henry "David" Sep 2007 Cambridge (GMT/BST) 2×3³×109 Posts	P-1 run to 1e10 with B2 of 1e15 i can run further B2 if anyone thinks it worthwhile each further 1e15 will take about 50 minutes but increasing B2 only really increases the chance of finding small factors that would already have been removed by ecm

2009-12-31, 17:07	#709
Andi47 Oct 2004 Austria 2·17·73 Posts	617@11e6, no factor.

2009-12-31, 21:41	#711
unconnected May 2009 Russia, Moscow A21₁₆ Posts	1000@11e6 will be done in 6 hours.

2010-01-01, 20:07	#715
Andi47 Oct 2004 Austria 2×17×73 Posts	232@43e6, no factor.