[QUOTE=debrouxl;410134]I tried to sum up the (potential) reservations for NFS@Home's 14e in the latest several dozens of posts:

[U]Need t55, in slow progress mostly by Jon (jyb):[/U]
11^236+4^236 (100 curves at B1=26e7 by Lionel Debroux)
8^271-5^271
12^227-11^227
[/QUOTE]

These now have a little over 10K curves at B1 = 110M. Sufficient? Either way I'll need to back off of them in favor of other things for a little bit.

My cores have now run over 7800 curves at B1=43e6 on C186_124_73, I'll queue it. Also, removed 7000 curves from the count of C175_142_39, and started ECM on C189_139_46.

Sean: thanks.

jyb: great, thanks :smile:
I'll queue a few thousand more curves at B1=43e6 on these three numbers, but you did the bulk of the work.

[QUOTE=debrouxl;410506]jyb: great, thanks :smile:
I'll queue a few thousand more curves at B1=43e6 on these three numbers, but you did the bulk of the work.[/QUOTE]

I wouldn't bother with B1=43e6 for these. They had a full t50 before I did this work. Did you mean B1=11e7?

Nope, I really meant B1=43e6, because 4 of the 5 computers I tasked with running ECM curves are low on RAM :smile:
With your curves 10K at B1=11e7 and the fact that there was already t50 work before them, 11^236+4^236, 8^271-5^271, 12^227-11^227 have now received more than 4t50 work. I'll let the 24 cores run curves at B1=43e6 on these three numbers for 2 or 3 wall clock days, for at least another t50.

I removed 5000 curves at B1=43e6 from the counts of C175_142_39 (total 12000) and C189_139_46 (total 5000). C189_139_46 shall be ready for sieving tomorrow morning.

C175_142_39 will finish ECM with 4000 curves @B1=110M by tomorrow night, might be early Saturday morning before I can post.

Then I can focus back on C178_147_44, with has ~0.4t55 so far.

[QUOTE=swellman;410673]C175_142_39 will finish ECM with 4000 curves @B1=110M by tomorrow night, might be early Saturday morning before I can post.

[/QUOTE]

Done. No factors found. Now running C178_147_44 to t55.

What happened with C189_139_46?

OK, thanks for the curves on C175_142_39 :smile:
C189_139_46 is under ECM locally as well, a bit beyond an additional t50.

C189_139_46 has received the additional ~t50 I wanted to be run, I need to pre-process and queue it.
11^236+4^236, 8^271-5^271 and 12^227-11^227 are at ~2/3 of the additional t50, I have entered polys for the two "minus" into the queue.

EDIT: is the following polynomial the best one for 11^236+4^236, given that 236 = 6*39 + 2, Y1=4^39, Y0=-11^39 ?
[code]n: 398220076342877083410192123329749440758351630436789292868881932670361221644051451799844617572049679161062349753245258129710655793910358390522061155662621520541671884691943668021718527748007962329561851667690484701685609825229706681
skew: 0.713765855503608
c6: 121
c5: 0
c4: 0
c3: 0
c2: 0
c1: 0
c0: 16
Y1: 302231454903657293676544
Y0: -41144777789250865278081232758997200423491[/code]
At least, it sieves at a decent speed for a SNFS difficulty 246 task.

[QUOTE=debrouxl;411071]C189_139_46 has received the additional ~t50 I wanted to be run, I need to pre-process and queue it.
11^236+4^236, 8^271-5^271 and 12^227-11^227 are at ~2/3 of the additional t50, I have entered polys for the two "minus" into the queue.

EDIT: is the following polynomial the best one for 11^236+4^236, given that 236 = 6*39 + 2, Y1=4^39, Y0=-11^39 ?
[code]n: 398220076342877083410192123329749440758351630436789292868881932670361221644051451799844617572049679161062349753245258129710655793910358390522061155662621520541671884691943668021718527748007962329561851667690484701685609825229706681
skew: 0.713765855503608
c6: 121
c5: 0
c4: 0
c3: 0
c2: 0
c1: 0
c0: 16
Y1: 302231454903657293676544
Y0: -41144777789250865278081232758997200423491[/code]
At least, it sieves at a decent speed for a SNFS difficulty 246 task.[/QUOTE]

Yeah, that polynomial is probably the best one. You could maybe try sieving with 484x^6 + 1, Y1 = 2^79, Y0 = -11^39, but phi prefers yours, so that's what I'd use.

Alright.

I had failed to make phi (even your 0.1.4 version, that is) produce a polynomial for a "+" number. I only realize now that I should have fed it 472 11 4 <the composite> :smile:

A few more
 

These are some remaining xyyxf candidates which are slow to sieve despite unimpressive SNFS difficulties:

C174_117_79 (ECM to t50 by yoyo@Home)
C202_127_58 (ECM to t50 by yoyo@Home)
C222_124_67 (ECM to t50 by yoyo@Home)
C200_118_77 (ECM to t50 by yoyo@Home)
C186_148_33 (ECM to t50 by Sean Wellman)
C190_147_34 (ECM to t50 by Sean Wellman)

Any interest in weaving them into the 14e queue?