C162 from aliquot sequence 11040:i10042

[CODE]n: 666200860448065807559069011622289471024470083813150588678212557888061967734823709660780653171530668594928433698873446835653669759750831185673377372552136820286157
c0: -4842014125525207530858758666784717135662424
c1: -35867596255251296154589012184653034
c2: 3204310945049688836206519121
c3: -60889414509518735724
c4: -240033545412
c5: 1368
Y0: -54639137187600920645052480093943
Y1: 51476800658448971
skew: 123342400.58
lss: 0
rlim: 134217727
alim: 134217727
lpbr: 31
lpba: 31
mfbr: 62
mfba: 62
rlambda: 2.7
alambda: 2.7[/CODE]Suggesting sieve range is 20M-100M with 14e.

[QUOTE=chris2be8;461782]NB. Are you sure the n in the poly you posted is right? My checking script says the poly does not evaluate to a multiple of n.

Chris[/QUOTE]

Nice catch, thank you- it was a miscopy, a single leading digit was left off when I copied n. Fixed here:
[code]#13*2^800-1 difficulty: 242
n: 293279338268454023866245440870308237806520338071962741869336774244320823422643775297036986460002650705701592500634862028121070426777291354105093480717237604707298542950947863172273537595119
m: 10889035741470030830827987437816582766592
type: snfs
skew: 0.53
c6: 52
c0: -1
rlim: 110000000
alim: 110000000
lpbr: 32
lpba: 32
mfbr: 64
mfba: 64
rlambda: 2.7
alambda: 2.7[/code]
Test sieving: blocks of 2000 Q
Q=15M yield 9271
Q=45M yield 8525
Q=75M yield 7601
Q=105M yield 6481
Avg yield just under 4, so Q=15-115M should produce ~380M raw rels.

C217_143_51 is ready for SNFS.

[code]
n: 3847664448413812267047914867592103680820180524235526079545385971422562137541815537587473733566318197197881636227707158163914899168994354781394993864499983442146690251931248652461191792410592816347751852116841440456277
# 143^51+51^143, difficulty: 245.89, anorm: 2.44e+040, rnorm: 2.00e+046
# scaled difficulty: 245.89, suggest sieving rational side
# size = 7.294e-013, alpha = 0.000, combined = 9.952e-014, rroots = 0
type: snfs
size: 245
skew: 13.005
c5: 1
c0: 371943
Y1: 3575694237941010577249
Y0: -33077684981700138043846177178617140686009839016451
rlim: 240000000
alim: 240000000
lpbr: 32
lpba: 32
mfbr: 64
mfba: 64
rlambda: 2.8
alambda: 2.8
[/code]


Test sieving with Q in blocks of 5000
[code]
Q=30M 8939 rels
Q=120M 10207 rels
Q=200M 10256 rels
Q=250M 9370 rels
Q=300M 9372 rels
[/code]

suggesting a sieving range of 30-290M for Q

Being Thomas away who is feeding the 14e/15e server? I've noticed 16e buffer has been increased which is Greg work. Shall I contact Greg or Jon to add more work to 14e queue? Please let me know your thoughts.

I believe Tom returns tomorrow but do what you feel is best. [url=http://www.mersenneforum.org/showpost.php?p=460868&postcount=1052]Post 1052[/url] of this thread is the next composite up for queueing.

Here I am, back from Kazakhstan. It's a surprisingly pleasant destination (and at the moment there are no visa formalities), though it's quite a long flight for Americans. Almaty is a beautiful green city full of parks and with snow-capped mountains towering behind, Astana is a showcase of contemporary architecture and Expo 2017 is well worth a week of most peoples' time.

I have queued up

C190_179743_47
C215_145_52
C216_143_53
13_2_800m
C162_11040_10042
C217_143_51

Another one ready from OPN.
Sieve on algebraic side.
[CODE]n: 80832557038347780888918781952433859700930123686236845575266729299411557537387398586383318894733059371401075331806816110662206491713236126708649379119251434934443311432802821700066684276342011789
# 69655517^31-1, SNFS difficulty: 243, sieve on ALGEBRAIC side
lss: 0
m: 1639749850771434978413554768710418997357
c6: 69655517
c0: -1
Y1: -1
Y0: 1639749850771434978413554768710418997357
skew: 0.0493
rlim: 262000000
alim: 262000000
lpbr: 32
lpba: 32
mfbr: 64
mfba: 64
rlambda: 2.8
alambda: 2.8[/CODE]
Trial sieving 5K blocks.
[CODE] Q Yield
20M 11252
60M 8070
100M 9748
150M 7371
200M 7241
250M 6400
300M 6919
350M 5405[/CODE]

C194_69655517_31 added to the bucket

I thought this might be on the border of 30/31 bit job.
It appears to be a feasible 30-bit job.
C165, SNFS-214.

[CODE]n: 172904267607133692600023689313291160063499866826280531198927596373136744534083903187792657535880226755952840119335028977849736514146134295610291000088977551801930621
# 189343400041^19-1, sieve on algebraic side
lss: 0
skew: 0.0132
c6: 189343400041
c0: -1
Y1: -1
Y0: 6788135681763134049152738766268921
rlim: 67000000
alim: 67000000
lpbr: 30
lpba: 30
mfbr: 60
mfba: 60
rlambda: 2.6
alambda: 2.6[/CODE]

Trial sieving 5K blocks.
[CODE] Q Yield
20M 14066
60M 8574
100M 8135[/CODE]

Two more candidates for 14e are ready

C216_144_59
[code]
n: 514548289943568581559321061380772031778525064633771957427108878147287542341934942194563675367261688057460971264089058525422299281007398255591925791513112327395581524241043563058853387535286826303113988848427372240509
# 144^59+59^144, difficulty: 256.21, anorm: 7.20e+037, rnorm: 2.77e+048
# scaled difficulty: 257.97, suggest sieving rational side
# size = 1.216e-012, alpha = 0.000, combined = 1.355e-013, rroots = 0
type: snfs
size: 256
skew: 1.3104
c6: 16
c0: 81
Y1: -1277919997482491707392
Y0: 3165543453070218706859776348972393302368161
rlim: 240000000
alim: 240000000
lpbr: 32
lpba: 32
mfbr: 64
mfba: 64
rlambda: 2.8
alambda: 2.8
[/code]

Test sieving results, with Q in blocks of 5000
[code]
Q=20M 12144
Q=100M 10352
Q=200M 8861
Q=250M 7833
Q=300M 7817
[/code]
Suggesting a sieving range for Q of 20M to 290M




C217_128_101
[code]
n: 4554250754369240569241836149015408052441776431801581494189528934942848737019234430862488781232860282783276819529367528577389336977633263136835155375668361658923081297850267235690606115270359157215678027868378929514689
# 128^101+101^128, difficulty: 256.55, anorm: 2.86e+38, rnorm: -2.82e+48
# scaled difficulty: 258.22, suggest sieving rational side
# size = 5.110e-13, alpha = 1.178, combined = 7.377e-14, rroots = 0
type: snfs
size: 256
skew: 5.2273
c6: 1
c0: 20402
Y1: -1232391940347446492727576582468089832102101
Y0: 332306998946228968225951765070086144
rlim: 240000000
alim: 240000000
lpbr: 32
lpba: 32
mfbr: 64
mfba: 64
rlambda: 2.8
alambda: 2.8
[/code]


Test sieving results for Q in blocks of 5000
[code]
Q=20M 8335 rels
Q=100M 6696 resl
Q=200M 5575 rels
Q=300M 5003 rels
Q=410M 4317 rels
[/code]

Suggesting a sieving range of 20-450M for Q

OPN Number
 

A C205 from the t550 file.
[CODE]n: 6812705581997627677120549500087957251265885151638027348637001979562879437680270930104180355867537729315934935127814988992396033962567217970919241520576836109473807185162725539805716963371326262786474133183
# 852460489981^19-1, SNFS-227, sieve on algebraic side
lss: 0
skew: 0.01027
c6: 852460489981
c0: -1
Y1: -1
Y0: 619473564657564612496942929010663141
rlim: 132000000
alim: 132000000
lpbr: 31
lpba: 31
mfbr: 62
mfba: 62
rlambda: 2.7
alambda: 2.7
type: snfs[/CODE]
Trial sieving 5K blocks.
[CODE] Q Yield
20M 11787
60M 8624
100M 9608
150M 7503[/CODE]