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-   -   Fast Breeding (guru management) (https://www.mersenneforum.org/showthread.php?t=20024)

RichD 2016-03-14 17:39

[QUOTE=wblipp;428871]

C152 from [URL="http://factordb.com/index.php?id=1100000000438761028"]P155+1[/URL]

[URL="http://factordb.com/index.php?id=1100000000438410836"]P155[/URL] is the largest factor of [URL="http://factordb.com/index.php?id=1100000000438410834"]126975359699835793^13-1[/URL]
126975359699835793 is the largest factor of [URL="http://factordb.com/index.php?query=%2856782082406079903^3-1%29%2F56782082406079902"]56782082406079903^3-1[/URL]
56782082406079903 is the largest factor of [URL="http://factordb.com/index.php?query=%281435511378542612963^3-1%29%2F1435511378542612962"]1435511378542612963^3-1[/URL]
1435511378542612963 is the largest factor of [URL="http://factordb.com/index.php?query=%285490513541^3-1%29%2F5490513540"]5490513541^3-1[/URL]
5490513541 is the larger factor of [URL="http://factordb.com/index.php?query=%28128341^3-1%29%2F128340"]128341^3-1[/URL]
128341 is the larger factor of [URL="http://factordb.com/index.php?query=%2870841^3-1%29%2F70840"]70841^3-1[/URL]
70841 is the larger factor of [URL="http://factordb.com/index.php?query=%2819^7-1%29%2F18"]19^7-1[/URL][/QUOTE]

Here is one.
[CODE]N: 72849242010339804032966663649086851740661920277845150485004607402069907495749229294035802910531361795863323085362573974250330791681304271439019064037921
# expecting poly E from 3.91e-12 to > 4.50e-12
R0: -120188842432119464529386632767
R1: 156165800801173
A0: 9995992425615833990887971797442508
A1: 630868428094602014104102587
A2: -225001925048802605328152
A3: -503906160210931278
A4: 1730929497010
A5: 2904720
skew 409105.93
# skew 409105.93, size 8.926e-15, alpha -5.166, combined = 4.155e-12 rroots = 3[/CODE]

XYYXF 2016-03-15 02:08

And a small GNFS task: [B]C158_146_114[/B]
[code]N: 11433930510657525802242508694387511425252968036838561546348744842723750468949029726528203609088870758059069144773656767587517029117842540418860251401773887977
# expecting poly E from 1.89e-12 to > 2.18e-12
R0: -1983693185001933911781991366852
R1: 2074876571754517
A0: -127537506448504796520155472670386837015
A1: 147883379800840367566645208682451
A2: -2170511837088282296299855
A3: -16442292485362525883
A4: 1992924800478
A5: 372240
skew: 4246688.60
# skew 4246688.60, size 2.682e-15, alpha -7.202, combined = 2.038e-12 rroots = 3[/code]

jyb 2016-03-15 04:05

For your consideration
 
If the 14e queue is in need of some slightly larger tasks, here are a few from the Homogeneous Cunningham Numbers. Each has had 10,000 ECM curves with B1=110e6.

[code]
6^316+5^316 SNFS 246
4^409-3^409 SNFS 246
6^317+5^317 SNFS 247
5^353-2^353 SNFS 247
6^317-5^317 SNFS 247
[/code]

I can supply polynomials for these if necessary.

debrouxl 2016-03-15 07:35

I'm (re-)reserving the 12 numbers posted in this topic over the past three days :smile:
* 3 OP GNFS 152, posted by William, with polynomials by Rich Dickerson;
* 3 XYYXF SNFS tasks and 1 GNFS 158, posted by Andrey;
* 5 Homogeneous Cunningham SNFS tasks, posted by Jon. Those shall be more substantive for the grid.

Andrey: how much ECM did the GNFS 158 task receive ?

I forgot to stop ECM yesterday evening, and this morning, I see an even nicer ECM hit on another near-repdigit composite: a p62 with B1=43e6. That's certainly not a record, but is already fairly unlikely. The cofactor is a 169-digit composite, so the full factorization remains easier by SNFS than by GNFS.

XYYXF 2016-03-15 19:12

[QUOTE=debrouxl;429167]Andrey: how much ECM did the GNFS 158 task receive ?[/QUOTE]Around 2/3 of t50 :)

swellman 2016-03-15 20:23

Two nominees for 15e queue
 
[QUOTE=wombatman;426907]Just wanted to follow up and see if the C190 for Home Primes 2 (4496) from [URL="http://www.mersenneforum.org/showpost.php?p=425167&postcount=365"]this[/URL] post is a good candidate for NFS@Home?

Thanks! :smile:[/QUOTE]


Also proposing C219_145_66 as well. It has survived a full t55 with no factors found. I have a poly if needed. Thanks.

RichD 2016-03-18 03:47

It appears [B]C186_2426789_31_plus_3162104763[/B] needs a little touch-up on sieving. I doubt the handful of outstanding WUs will return 14M relations. It may be due to some rogue clients reporting inaccurate counts a couple weeks ago.

pinhodecarlos 2016-03-21 10:18

Please be alert, Syracuse University is on fire. Please feed more 14e jobs.

debrouxl 2016-03-23 10:01

I'm currently queuing the last two numbers from Jon's set of 5, which means that the 14e part of the grid will soon be starving once again :smile:

jyb 2016-03-23 12:42

[QUOTE=debrouxl;429849]I'm currently queuing the last two numbers from Jon's set of 5, which means that the 14e part of the grid will soon be starving once again :smile:[/QUOTE]

Well if you need them, here are five more HCN composites that have all had 10000 curves with B1=110e6:

[code]
12-5,227
9-8,257
9+8,257
11+10,236
11+8,236
[/code]

pinhodecarlos 2016-03-23 12:47

Lionel, please add them all because a lot of cores are now deployed on running 14e tasks. Daily average of completed 14e wus is around 14k from last 7 days.


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