A new ECM factor:
675353281583190606094335948707995673045348275372668260771 | 10^209 + 3^209

I have to check ~10 composites first before I find a factor with B1=11e7. So I guess the remaining 500 composites are thoroughly tested.

[QUOTE=Yamato;319338]A new ECM factor:
675353281583190606094335948707995673045348275372668260771 | 10^209 + 3^209

I have to check ~10 composites first before I find a factor with B1=11e7. So I guess the remaining 500 composites are thoroughly tested.[/QUOTE]Could you elaborate please?

I'd like to have a reasonably accurate estimate of how much ECM work has been done in total so that the server can allocate close to optimal tasks.


Paul

[QUOTE=xilman;314661]The last 6 weeks or so have seen quite a few new factors as in the list below. There are now 513 composites remaining. Surely it should be possible to reduce that to below 500 before the end of the year.

The ECMnet server is still allocating B1=43M tasks, suitable for find factors around 50 digits, but only Jon Becker seems to be working on them. He's doing sterling work but it would be nice if others joined in.
[/QUOTE]
Now down to 501 composites, folloing these results which have been submitted since the posting above.
[code]
12-7 197 C186 101816468431357451108053944756602596917096763. P142 R Silverman ECM 2012-10-18
8+7 226 C187 10939150133076916273670386654464458774355337457641826941. P132 R Silverman ECM 2012-10-19
8+5 227 C142 1032985651886409029908956013317978620825187275317223. P91 R Smith GNFS 2012-10-19
8-5 253 C188 10428008422583554162249343048800548197531383268762539747. P133 R Silverman ECM 2012-10-26
11+5 230 C144 579123390247222241104441423992607209210494043713136221. P90 R Smith GNFS 2012-10-29
11-4 209 C145 1937046761628490970932716753103212369405365513617725224272804392378161. P75 R Smith GNFS 2012-11-12
10+3 209 C154 675353281583190606094335948707995673045348275372668260771. P98 K Schönberger ECM 2012-11-22
8-7 265 C146 1981875221264016445924862001391599503565315761641045631678070748018064281. P74 R Smith GNFS 2012-11-27
7-5 259 C149 50251104707596505338022013447283300155695770316414453970510731053807427. P78 R Verser SNFS 2012-12-05
7-4 259 C156 122189715347853340035655033320802731185863282703661746701712692673. P91 R Verser SNFS 2012-12-08
11+10 226 C193 2982472393425164971885787346052396920698971384657. P145 R Silverman ECM 2012-12-10
8+5 263 C193 13788594068073045808676332617455590952478930211. P147 R Silverman ECM 2012-12-10
[/code]I will be updating the ECMNET server with these results shortly. I'll also add the ECM work Yamoto has told me he's done independently.

(Added in edit: now done)

The 500 target must be achievable now!

[QUOTE]The 500 target must be achievable now![/QUOTE]:paul:

[QUOTE=Xyzzy;321206]:paul:[/QUOTE]
[offtopic]I saw the emoticon and its name few days ago when I was searching them for something else and I was sure you are waiting a good opportunity to promote it :smile:... I am jealous now, waiting for mine one... c'mon, even cmd and Davieddy got one...:razz:[/offtopic]

You have had one since July 21st.

:ouch:

Ha ha, didn't know, I am not a fan of "5 pages large emoticon", and never scroll that list so down. That doggie looks great, but is too big, I can't sign my messages with it :razz: Thanks anyhow, I will try to make some use of it...

We'll definitely hit 500 since 5^346+3^346 is almost complete. Delayed due to a power outage at work over the weekend at work, and the UPS died before the emergency generator was cranked up....

5^346+3^346 is complete and reported to Paul and the factoring database.

Update 20130120
 

[QUOTE=xilman;321192]The 500 target must be achievable now![/QUOTE]It was achieved well before the end of 2012.

The following factorizations have been reported since the previous update.
[code]
11+4 220 C151 143809791273790659432174331594022496862477284761947355679967342081. P86 J Becker SNFS 2012-12-11
10+7 224 C181 5528370943799899411863991067033748691497187999553. P133 R Verser SNFS 2012-12-11
5+3 346 C146 55730663682002318231676728721787484255694186764456806737035868595673. P79 R Smith GNFS 2012-12-14
10+3 224 C150 5157945084829359284812009806094585886031689938338729310252673. P90 R Verser SNFS 2012-12-15
8-3 211 C181 7927984517090601808630907196030689354452334536434875508591973878629129357. P108 R Verser SNFS 2012-12-18
6-5 277 C198 3770044748478543048105660881343109833001753634873. P149 R Silverman ECM 2012-12-27
11+3 212 C147 29780196355801478666713129330364863862343197781835529. P94 R Smith GNFS 2012-12-31
7-4 227 C181 64058834297403616767185560766735482939917705664731527636231563663876810952381. P105 B Buhrow SNFS 2013-01-14
7+5 277 C147 3840230414325501282307839061669608637205238473248916786940629597. P83 R Smith GNFS 2013-01-15
11-6 217 C181 3541925923687294436304023070343286528133911251198202842157. P124 B Buhrow SNFS 2013-01-16
11+9 217 C180 11718656967758879412552199489556790051119508057413. P131 B Buhrow SNFS 2013-01-16
11+9 230 C181 1539121939687493896719475382672845028399197701784485527693200476544828068627601861. P100 B Buhrow SNFS 2013-01-17
7+2 253 C172 28870503880204295075828235918141027227549315026445505293152350803. P107 B Buhrow SNFS 2013-01-17
7+3 226 C178 10226725203105623399602383067408938911400389987052385765972117641397. P111 B Buhrow SNFS 2013-01-18
9+5 250 C191 6442431220530089914332770597375760565926071508014347380001. P134 B Buhrow SNFS 2013-01-18
[/code]
There are now only 486 composites left in the table.

Unfortunately I've been unable to upload these results to the web pages because ftp.vispa.com is down. I've raised a ticket with the Hell Desk and hope it's resolved tomorrow.

Paul

7^299 - 3^299 has factors

[code]
Thu Feb 7 21:15:48 2013 prp61 factor: 1497780723898541954402942574017064792681335586911942854818307
Thu Feb 7 21:15:48 2013 prp70 factor: 1553427137055387523990325068980165910660575660216019565381853262915933
Thu Feb 7 21:15:48 2013 prp88 factor: 3081105816218005616577647543917565462690982967973454824100279622393678865910244028199289
[/code]