Fast Breeding (guru management)

[debrouxl]

For 15e, technically, yup.
Tom, Greg ?

[debrouxl]

I've just queued four numbers, which should kept the grid fed for several days
3349427^37-1 is FF in FactorDB.

[swellman]

Here are the final two "slow to sieve" xyyx numbers remaining in that project with y<41. Both seem appropriate for 14e, as you see fit. Thanks.


C202_149_37
C224_147_40

n: 1007971295262707014821092524861085964860194904508722096469786769187866830944994845923624768081143826970500335639461287138401330034882423551055314703624829882526519474010553740564468659150489838884784463
# 149^37+37^149, difficulty: 235.23, anorm: 1.48e+038, rnorm: 7.82e+044
# scaled difficulty: 240.09, suggest sieving rational side
type: snfs
size: 235
skew: 4.2031
c6: 1
c0: 5513
Y1: -10942526586601
Y0: 1603404513114153724313506335083015711557
rlim: 37800000
alim: 37800000
lpbr: 30
lpba: 30
mfbr: 59
mfba: 59
rlambda: 2.7
alambda: 2.7

n: 28268016775281394675661797065353893461024405560108590300553169664620437066771499197448652291101454944107695809606813238007626579527350057082853589122206396128337431238334280637565714942399883736907450199396747678527424997899
# 147^40+40^147, difficulty: 239.41, anorm: 3.98e+039, rnorm: 5.02e+044
# scaled difficulty: 239.41, suggest sieving algebraic side
# size = 5.181e-012, alpha = 0.000, combined = 4.095e-013, rroots = 0
type: snfs
size: 239
skew: 1.2583
c6: 1000
c0: 3969
Y1: -70632088586703
Y0: 562949953421312000000000000000000000000
rlim: 47200000
alim: 47200000
lpbr: 31
lpba: 31
mfbr: 62
mfba: 62
rlambda: 2.7
alambda: 2.7

[swellman]

Originally Posted by debrouxl

Sean: alright.

XYYXF: indeed, I'd consider queuing C233_128_67 and C185_150_37 after 3000 additional curves at B1=11e7, and C193_146_35 after 1000 additional curves at B1=11e7

C233_128_67 survived 3000 curves @B1=11e7 with no factors found.

[wblipp]

This one needs some test sieving - it would "normally" be too small, but it has big coefficients. Maybe it's still too small. It comes from a P189+1, but because of the structure of the P189 it is

2426789^31+3162104763

[swellman]

Originally Posted by debrouxl

Sean: alright.

XYYXF: indeed, I'd consider queuing C233_128_67 and C185_150_37 after 3000 additional curves at B1=11e7, and C193_146_35 after 1000 additional curves at B1=11e7

C185_150_37 has survived 3000 curves of ECM @B1=11e7 with no factors found.

[swellman]

Originally Posted by swellman

Here are the final two "slow to sieve" xyyx numbers remaining in that project with y<41. Both seem appropriate for 14e, as you see fit. Thanks.


C202_149_37
C224_147_40

Thanks for queuing these two. Both of these were ECM'd to t50 by yoyo@Home.

[XYYXF]

Originally Posted by XYYXF

C172_145_36, 7600 curves at B1=43M
Sextic (difficulty 226): (145⁶)⁶ + 36*(6⁴⁸)⁶ = 4407612197603657835372217347030574421197174031327075617 * C172

C213_150_38, 7600 curves at B1=43M
Sextic (difficulty 226): 5625*(75⁶)⁶ + 16*(2¹⁸*19²⁵)⁶ = 15732718408061 * C213

And those are too small I guess? :)

[debrouxl]

Yeah, these are small-ish and wouldn't feed NFS@Home's clients for a long time

[wblipp]

Originally Posted by debrouxl

Yeah, these are small-ish and wouldn't feed NFS@Home's clients for a long time

Does "too small" apply to 2426789^31+3162104763 in #401, too? I thought the big coefficients might push it into the "small but not too small" range,

[swellman]

I notice C224_147_40 has a note saying "needs more ECM". Using 0.21*235 difficulty = 49.35, but I'll be glad to run some curves @B1=11e7.

How much more ECM?