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 2021-07-24, 15:53 #155 chris2be8     Sep 2009 2×7×157 Posts QUEUED AS f92_128p1 (92^128+1)/2502170445998591028938033921176278993621996259422137347841 from the Brent tables: Code: # Built Fri Jul 23 17:46:16 2021 # Estimated SNFS difficulty 252, GNFS equivalent 183, GNFS difficulty 194, degree 6 n: 92581669929768758455874590902521441151359778504857919695704436037164650779125575114015859832784676525588167782301011779988636446058242924625552171778911527850308105240392970691477158687972987137 type: snfs c6: 529 c0: 4 # Y0 = 92^21*2 Y0: 347195725659545658696840255119781825347584 # Y1 = 1^0 Y1: 1 # msieve rating: skew 0.44, size 1.367e-12, alpha 0.553, combined = 1.505e-13 rroots = 0 skew: 0.44 rlim: 134000000 alim: 134000000 lpbr: 31 lpba: 31 mfbr: 62 mfba: 62 rlambda: 2.6 alambda: 2.6 Sieve on 15e_small from 34M to 142M on the rational side. Test sieving 10k ranges: Code: Q yield 34M 24656 84M 19969 134M 17317 184M 15463 I'll do the LA. Chris Last fiddled with by swellman on 2021-07-24 at 17:08
 2021-07-26, 08:34 #156 unconnected     May 2009 Russia, Moscow 1010011110112 Posts QUEUED AS C180_933436_12589 C180 from 933436:i12589 for 15e_small queue. Thanks @swellman for the poly! Code: n: 169466958171124341714029569297402534698200480863118505654575908193955926461210763506522230105114624017688145128355541724896679772204227560364000899496899343780772874837431741014877 # norm 1.717982e-17 alpha -7.522918 e 8.710e-14 rroots 1 skew: 147212055.18 c0: -1300936654270606172772969937897048806098116680 c1: -20496040122235583814695860405489672024 c2: 227665374099063726318992016368 c3: 1389339089051554010081 c4: -32164899836742 c5: 51600 Y0: -80036311631796089269739072068424039 Y1: 29106882730065799 rlim: 134000000 alim: 134000000 lpbr: 31 lpba: 31 mfbr: 62 mfba: 62 rlambda: 2.6 alambda: 2.6 type: gnfs lss: 0 Suggesting sieve range is 20M-180M, I'll take the LA. Last fiddled with by swellman on 2021-07-26 at 19:49
 2021-07-27, 15:41 #157 chris2be8     Sep 2009 2×7×157 Posts QUEUED AS f95_127p1 (95^127+1)/276800819036588557414760553949428231105325897886322799372896 from the Brent tables: Code: # Built Mon Jul 26 17:46:32 2021 # Estimated SNFS difficulty 252, GNFS equivalent 182, GNFS difficulty 192, degree 6 # 127 is 3 mod 4, 2 mod 5 and 1 mod 6 n: 535464274859031834400699881096019023798932346086176393122528226592295795404739552192272624363021660025766027624114389798286146641091848611760412886216003949777175223336130502979448706665247631 type: snfs c6: 95 c0: 1 # Y0 = 95^21 Y0: 340561626288115122639539918422698974609375 # Y1 = 1^0 Y1: 1 # msieve rating: skew 0.47, size 2.165e-12, alpha 0.542, combined = 2.076e-13 rroots = 0 skew: 0.47 rlim: 134000000 alim: 134000000 lpbr: 31 lpba: 31 mfbr: 62 mfba: 62 rlambda: 2.6 alambda: 2.6 Sieve on 15e_small from 48M to 134M on the rational side. Test sieving 10k ranges: Code: Q yield 34M 30966 84M 24989 134M 22167 184M 19490 I'll do the LA. Chris Last fiddled with by swellman on 2021-07-27 at 18:12
 2021-07-30, 21:42 #158 VBCurtis     "Curtis" Feb 2005 Riverside, CA 11·461 Posts QUEUED AS 13_2_889m1 13*2^889-1 is ready for 15e: Code: n: 3880986238042905369620185979142823287228479250827329480332593876270971333281938978887767677598357406896200266140268736135688087460144691373923365978870193087607522914983817870960166921727471856439141720392730259 skew: 0.58 type: snfs c6: 26 c0: -1 Y1: -1 Y0: 356811923176489970264571492362373784095686656 rlim: 134000000 alim: 240000000 lpbr: 32 lpba: 32 mfbr: 93 mfba: 62 rlambda: 3.5 alambda: 2.5 Test-sieving 1kQ blocks on the -r side indicates Q from 18-160M should yield 435-440M relations: Code: #Q=20M 4432 rels, 0.177 sec/rel #Q=50M 3746 rels, 0.206 sec/rel #Q=80M 2792 rels, 0.251 sec/rel #Q=110M 2920 rels, 0.275 sec/rel #Q=140M 2579 rels, 0.308 sec/rel #Q=170M 1834 rels, 0.337 sec/rel I'd like to handle the matrix. Last fiddled with by swellman on 2021-07-30 at 21:54
 2021-08-03, 15:50 #159 chris2be8     Sep 2009 2·7·157 Posts QUEUED AS f33_167m1 (33^167-1)/888362140658110304048769123025265482265652270731943135938144 from the Brent tables: Code: # Built Sat Jul 31 19:12:03 2021 # Estimated SNFS difficulty 256, GNFS equivalent 185, GNFS difficulty 194, degree 6 n: 43978247359091058184454629690276280319501934743632022722959001667078139444796039195492424712213065518116888778644306828709477516785056148952710444409638154664466726291344436861228888397321897629 type: snfs c6: 1 c0: -33 # Y0 = 33^28 Y0: 3299060778251569566188233498374847942355841 # Y1 = 1^0 Y1: 1 # msieve rating: skew 1.79, size 1.493e-12, alpha 1.127, combined = 1.555e-13 rroots = 2 skew: 1.79 rlim: 134000000 alim: 134000000 lpbr: 31 lpba: 31 mfbr: 62 mfba: 62 rlambda: 2.6 alambda: 2.6 Sieve on 15e_small from 34M to 134M on the rational side. Test sieving 10k ranges: Code: Q yield 34M 25758 84M 21337 134M 18788 184M 16813 I'll do the LA. Chris Last fiddled with by swellman on 2021-08-03 at 16:08
 2021-08-06, 20:17 #160 swellman     Jun 2012 CB016 Posts 5p3_379 HCN Homogeneous Cunningham 5p3_379 is ready to sieve on 15e, just caching it here until needed for the queue. Code: n: 176877199453394755683611176247957697510554810175308097591095164182528099888246029561827570563836814753000456175983714549299434101804116679290506767720206983326587370992169494380338271840045218589 # 5^379+3^379, difficulty: 265.61, anorm: 7.75e+036, rnorm: 1.13e+050 # scaled difficulty: 267.80, suggest sieving rational side # size = 5.486e-013, alpha = 0.000, combined = 7.328e-014, rroots = 0 type: snfs size: 265 skew: 0.9184 c6: 5 c0: 3 Y1: -1144561273430837494885949696427 Y0: 108420217248550443400745280086994171142578125 rlim: 200000000 alim: 200000000 lpbr: 32 lpba: 32 mfbr: 94 mfba: 64 rlambda: 3.5 alambda: 2.8 Test sieving with q in blocks of 5k using the rational side on 15e: Code: Q(M) Rels 40 21397 70 18820 100 17600 150 14540 200 13791 Suggesting a q-range of 40-175M.
2021-08-06, 20:32   #161
jyb

Aug 2005
Seattle, WA

2×34×11 Posts

Quote:
 Originally Posted by swellman Homogeneous Cunningham 5p3_379 is ready to sieve on 15e, just caching it here until needed for the queue. Code: n: 176877199453394755683611176247957697510554810175308097591095164182528099888246029561827570563836814753000456175983714549299434101804116679290506767720206983326587370992169494380338271840045218589 # 5^379+3^379, difficulty: 265.61, anorm: 7.75e+036, rnorm: 1.13e+050 # scaled difficulty: 267.80, suggest sieving rational side # size = 5.486e-013, alpha = 0.000, combined = 7.328e-014, rroots = 0 type: snfs size: 265 skew: 0.9184 c6: 5 c0: 3 Y1: -1144561273430837494885949696427 Y0: 108420217248550443400745280086994171142578125 rlim: 200000000 alim: 200000000 lpbr: 32 lpba: 32 mfbr: 94 mfba: 64 rlambda: 3.5 alambda: 2.8
FYI, the SNFS difficulty for this is 264.91. YAFU seems to have added in an extra factor of log(5). Not a major difference, of course, but it may be better to omit YAFU's difficulty estimates if they're not going to be correct. Some other examples have bigger errors.

 2021-08-08, 18:43 #162 swellman     Jun 2012 324810 Posts 5+3,407 QUEUED AS 5p3_407 HCN 5+3,407 is ready for sieving whenever the opportunity arises. It's a quintic with a decent sized Q-range so I suggest 15e. Code: n: 576235064060916904425165476406148027078134090668845327177211426194119082823048302385787861894857358348847711857221838342163417642367100519461700062495802230254158725845009197757930127229942288078746188015054351 type: snfs size: 258 skew: 1.0000 c5: 1 c4: -1 c3: -4 c2: 3 c1: 3 c0: -1 Y1: -32762466136118554495624266564846038818359375 Y0: 5293955920339377321932611533700331969382528382719394 rlim: 134000000 alim: 134000000 lpbr: 31 lpba: 31 mfbr: 91 mfba: 62 rlambda: 3.4 alambda: 2.7 Test sieving with Q in blocks of 5k, sieved with 15e on the -r side: Code: Q(M) rels 40 8788 70 8657 100 8889 150 7955 200 7664 Suggesting a Q-range of 40-200M. Last fiddled with by swellman on 2021-08-11 at 10:28
 2021-08-10, 15:45 #163 chris2be8     Sep 2009 2×7×157 Posts QUEUED AS f40_158p1 (40^158+1)/20297241423583493836175033755699421 from the Brent tables: Code: # Built Mon Aug 9 17:14:10 2021 # Estimated SNFS difficulty 254, GNFS equivalent 182, GNFS difficulty 219, degree 6 n: 657720854568657408554306196444335636261103659215400693287668855015091802054616618676296235183523928187709283550173589798422772768213794154540022147083381345258698069704408347956496213840528602518747040936782860293508981 type: snfs c6: 25 c0: 1 # Y0 = 40^26*2 Y0: 900719925474099200000000000000000000000000 # Y1 = 1^0 Y1: 1 # msieve rating: skew 0.58, size 1.614e-12, alpha 1.376, combined = 1.672e-13 rroots = 0 skew: 0.58 rlim: 134000000 alim: 134000000 lpbr: 31 lpba: 31 mfbr: 62 mfba: 62 rlambda: 2.6 alambda: 2.6 Sieve on 15e_small from 34M to 135M on the rational side. Test sieving 10k ranges: Code: Q yield 34M 25189 84M 20472 134M 18127 184M 16224 I'll do the LA. Chris Last fiddled with by swellman on 2021-08-11 at 00:58
 2021-08-15, 04:03 #164 VBCurtis     "Curtis" Feb 2005 Riverside, CA 11×461 Posts QUEUED AS 13_2_894m 13*2^894-1 is ready for 15e: Code: n: 6497796283085790617646059150372366964606368896700914231897112007877472465041361104816633385368204738329247234286008433271383657849259390181995253232549627282181602450877054088274812983092443583055528120564219365658125347735106734265115515083 skew: 0.67 type: snfs c6: 13 c0: -1 Y1: -1 Y0: 713623846352979940529142984724747568191373312 rlim: 134000000 alim: 240000000 lpbr: 32 lpba: 32 mfbr: 93 mfba: 64 rlambda: 3.5 alambda: 2.5 Test-sieving 1kQ blocks on the -r side indicates Q from 20-215M should yield ~440M relations: Code: #Q=20M 3581 rels, 0.216 sec/rel #Q=50M 3034 rels, 0.245 sec/rel #Q=80M 2359 rels, 0.288 sec/rel #Q=110M 2282 rels, 0.359 sec/rel #Q=140M 2180 rels, 0.346 sec/rel #Q=170M 1515 rels, 0.389 sec/rel #Q=200M 1951 rels, 0.394 sec/rel I'd like to handle the matrix. Last fiddled with by swellman on 2021-08-15 at 10:37
 2021-08-21, 20:02 #165 swellman     Jun 2012 324810 Posts HCN 3+2,556 QUEUED AS 3p2_556 3+2,556 is ready to sieve on 15e. Code: n: 125642504022416546531606387714673441258705104478109659654639849512637463665035214289013994991210025166911204017782872717310785216279634719413936806172605808027266983192644103287009769753 type: snfs size: 265 skew: 1.1447 c6: 4 c0: 9 Y1: -9903520314283042199192993792 Y0: 235655016338368235499067731945871638181119123 rlim: 200000000 alim: 200000000 lpbr: 32 lpba: 32 mfbr: 94 mfba: 64 rlambda: 3.5 alambda: 2.7 Test sieving on the rational side with Q in blocks of 5k: Code: 40M 19457 70M 17089 100M 16318 150M 13012 200M 12641 Suggesting a Q-range of 40-190M. Last fiddled with by swellman on 2021-08-22 at 11:09

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