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I've notified Paul L. already, but perhaps of interest before the next update is published, I've completed the factorization of the largest number on the current table via SNFS.
5^356 + 3^356 = [CODE]P88 = 7521407193113468023912512979493268862807621850843333591358696180361980145007741535090809 P159 = 128297366370882233474824939220907862016515244896951591455580034643327090055027063453222669478931784302427747813766422573729356826692987260162871264323161845449 [/CODE] |
[QUOTE=bsquared;354784]I've notified Paul L. already, but perhaps of interest before the next update is published, I've completed the factorization of the largest number on the current table via SNFS.
5^356 + 3^356 = [CODE]P88 = 7521407193113468023912512979493268862807621850843333591358696180361980145007741535090809 P159 = 128297366370882233474824939220907862016515244896951591455580034643327090055027063453222669478931784302427747813766422573729356826692987260162871264323161845449 [/CODE][/QUOTE]Received it just now, thanks. Nice result. Paul |
The C149 cofactor of 11^238+5^238 factors as:
[CODE]prp53 factor: 14110608481206160176130860694439650268695990192680829 prp97 factor: 4994980007525996740450979163197410071011304160352723545116480621805850441817460932941385135693769[/CODE] |
Here are the recently found factors, 17 of them this time. There are now 383 composites left in the tables.
[code]12+7 197 C159 9670274554509453565889704132613265080986863364601660405304439514711242448598083. P80 R Silverman SNFS 2013-10-23 7+4 239 C201 64360227913015743806020550587521192636431068385499685301492801. P140 J Becker SNFS 2013-10-23 10+9 206 C204 30909895464990026128194579159747288119941946406961724986230239173088305901. P131 J Becker SNFS 2013-10-24 7+6 244 C203 809383029812459207187412597345567253920886810429425169. C149 J Becker SNFS 2013-10-25 7+6 244 C149 63637020489303595941725719865232518510594690127084269523737. P90 J Becker SNFS 2013-10-25 5+2 316 C149 218321191816769759649018315497756682901340487592115843927959753. P87 R Smith GNFS 2013-10-30 12+5 197 C194 52940286735171410944901782877265212059511251003882736771676082232820238382302274464313783. P105 R Silverman SNFS 2013-11-08 12+5 193 C159 1053289092916350984061144894225471593837394339437889785724163076264947. P90 R Silverman SNFS 2013-11-11 12+11 197 C191 5298622319211343018003666015740697248807294185249619267886177683884003. P121 R Silverman SNFS 2013-11-11 8-5 265 C167 251294524060538232347261205483316914902812789812981930764158633210991791946801. P90 J Becker SNFS 2013-11-17 12+11 199 C176 15547459100372972985931672496611405715354594194251566388159435149592247. P106 R Silverman SNFS 2013-11-18 3-2 505 C159 3861914514125666348841670428681615604191203451798164243497791836868127396291. P84 J Becker SNFS 2013-11-19 11-2 235 C156 3882723039517514319859901449793182400986383981471948042685203241. P93 J Becker SNFS 2013-11-20 11+3 235 C174 292154462122978208435287028426067578016607525706281431601. P118 J Becker SNFS 2013-11-24 12-5 199 C184 213141842490851561005263428623871085151752350869043273. C131 R Silverman SNFS 2013-11-25 12-5 199 C131 8355638274272506880005611122954937003626834035717152469. P76 R Silverman SNFS 2013-11-25 7-2 239 C199 257996086207313708979148007509587915087999744451035254660492043007. P134 R Silverman SNFS 2013-11-26 [/code] |
[QUOTE=xilman;360421]Here are the recently found factors, 17 of them this time. There are now 383 composites left in the tables.
[code]12+7 197 C159 9670274554509453565889704132613265080986863364601660405304439514711242448598083. P80 R Silverman SNFS 2013-10-23 7+4 239 C201 64360227913015743806020550587521192636431068385499685301492801. P140 J Becker SNFS 2013-10-23 10+9 206 C204 30909895464990026128194579159747288119941946406961724986230239173088305901. P131 J Becker SNFS 2013-10-24 7+6 244 C203 809383029812459207187412597345567253920886810429425169. C149 J Becker SNFS 2013-10-25 7+6 244 C149 63637020489303595941725719865232518510594690127084269523737. P90 J Becker SNFS 2013-10-25 5+2 316 C149 218321191816769759649018315497756682901340487592115843927959753. P87 R Smith GNFS 2013-10-30 12+5 197 C194 52940286735171410944901782877265212059511251003882736771676082232820238382302274464313783. P105 R Silverman SNFS 2013-11-08 12+5 193 C159 1053289092916350984061144894225471593837394339437889785724163076264947. P90 R Silverman SNFS 2013-11-11 12+11 197 C191 5298622319211343018003666015740697248807294185249619267886177683884003. P121 R Silverman SNFS 2013-11-11 8-5 265 C167 251294524060538232347261205483316914902812789812981930764158633210991791946801. P90 J Becker SNFS 2013-11-17 12+11 199 C176 15547459100372972985931672496611405715354594194251566388159435149592247. P106 R Silverman SNFS 2013-11-18 3-2 505 C159 3861914514125666348841670428681615604191203451798164243497791836868127396291. P84 J Becker SNFS 2013-11-19 11-2 235 C156 3882723039517514319859901449793182400986383981471948042685203241. P93 J Becker SNFS 2013-11-20 11+3 235 C174 292154462122978208435287028426067578016607525706281431601. P118 J Becker SNFS 2013-11-24 12-5 199 C184 213141842490851561005263428623871085151752350869043273. C131 R Silverman SNFS 2013-11-25 12-5 199 C131 8355638274272506880005611122954937003626834035717152469. P76 R Silverman SNFS 2013-11-25 7-2 239 C199 257996086207313708979148007509587915087999744451035254660492043007. P134 R Silverman SNFS 2013-11-26 [/code][/QUOTE] Paul, What happened to 6^257 - 5^257? It has not appeared on the update pages(s), yet it [b]disappeared[/b] from the reservations page. I can't find it anywhere. I was going to do it. If it has not been done. consider it reserved. I will do it after I finish 7,5,239+. Bob Bob |
Those [URL="http://www.leyland.vispa.com/numth/factorization/cunningham/2-.txt"]tables[/URL] from leyland/vispa seem a bit outdated, I just checked the 2,1061-, is written as a C320 :razz:
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[QUOTE=R.D. Silverman;360426]Paul,
What happened to 6^257 - 5^257? It has not appeared on the update pages(s), yet it [b]disappeared[/b] from the reservations page. I can't find it anywhere. I was going to do it. If it has not been done. consider it reserved. I will do it after I finish 7,5,239+. Bob Bob[/QUOTE]I don't know but I'll try to find out. Tom may also be able to help. Paul Paul (So good, they named them twice.) |
[QUOTE=LaurV;360429]Those [URL="http://www.leyland.vispa.com/numth/factorization/cunningham/2-.txt"]tables[/URL] from leyland/vispa seem a bit outdated, I just checked the 2,1061-, is written as a C320 :razz:[/QUOTE]They've not been updated for a very long time.
I'm tempted to remove those tables from my web pages because the information is now easily available elsewhere. That wasn't the case when I first hosted them. Paul |
6^257 - 5^257 is fully factored in the factoring database and was entered on 1 October 2013 (not by me).
Rich |
[QUOTE=richs;360435]6^257 - 5^257 is fully factored in the factoring database and was entered on 1 October 2013 (not by me).
[/QUOTE] My reservation database log has that Jon Becker reserved the number at 20130930 04:19:15Z and then submitted the factor at 20131001 01:01:41Z Tom |
[QUOTE=richs;360435]6^257 - 5^257 is fully factored in the factoring database and was entered on 1 October 2013 (not by me).
Rich[/QUOTE] [QUOTE=fivemack;360438]My reservation database log has that Jon Becker reserved the number at 20130930 04:19:15Z and then submitted the factor at 20131001 01:01:41Z Tom[/QUOTE]Thanks Rich & Tom. I dug out the factor from factordb and ran it through the standard update script. Nothing changed! A quick grep on the factor unearthed this: [code] [pcl@anubis anbn]$ grep 874808514446079294851611917951846302533572366512263272882896118157871 *.txt 6-5.txt:257 1543.50189854467127.874808514446079294851611917951846302533572366512263272882896118157871. P115 UPDATE.txt:6-5 257 C184 874808514446079294851611917951846302533572366512263272882896118157871. P115 J Becker SNFS 2013-09-30 [pcl@anubis anbn]$ [/code] So that answers Bob's question. I wonder why he thought the factorization was missing? Something else may be wrong. Now my ISP is playing again I can update the tables on the web. That should happen in the next few minutes. Paul |
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