[QUOTE=FactorEyes;99391]You're way ahead of me: it's yours.

I usually claim one only after I have started sieving. I just put 2000 curves into this at B1=11e6, and had set up an ggnfs .poly file.

Yes: definitely could use an "unreserve" utility.[/QUOTE]

FactorEyes,

In case you're interested, here's the result:

SNFS difficulty: 187 digits.
Divisors found:
r1=244202506963304063823741452588406234348988188136172947900319919384769 (pp69)
r2=8129488297297494619724908008483523759963004122183014307209163140330446102514435613214947214925300129242866104872621 (pp115)


Greg

5,4,239+
 

[QUOTE=frmky;99539]FactorEyes,

In case you're interested, here's the result:

SNFS difficulty: 187 digits.
Divisors found:
r1=244202506963304063823741452588406234348988188136172947900319919384769 (pp69)
r2=8129488297297494619724908008483523759963004122183014307209163140330446102514435613214947214925300129242866104872621 (pp115)


Greg[/QUOTE]

5,4,239+ C157 = p52.p105

5918501352664508734141758777764390319625479944266529
296765617341416510552330518176636120848639725909100701983485443132102786778976435130601757140714528006009

5,4,239- is nearly sieved. 5,3,244+ will be next followed by 5,3,247+

Bob

[QUOTE=R.D. Silverman;99590]5,4,239+ C157 = p52.p105
[/QUOTE]

Oops! I finished that one a few days ago. After Tom completed his reservation system, I stopped checking here for previously reserved composites. Sorry!

[QUOTE=R.D. Silverman;99590]
5,4,239- is nearly sieved. 5,3,244+ will be next followed by 5,3,247+
[/QUOTE]
I didn't do 5,4,239- since I thought it'd be better for the GNFS crowd. I'll steer clear of all of these.

Greg

More reservation-system fun
 

The reservation system will now accept factors and remove any reservations attached to them. It's a very simple interface: type the factor into the box on [url]http://www.chiark.greenend.org.uk/ucgi/~twomack/homcun.pl[/url] and it will work out which number it's a factor of. If the cofactor is prime it removes the number from the reservation table; if not, it puts the number back in with the new cofactor, still reserved to you.

If you reload the 'submit factor' page, it will say that it can't find a number with your factor; this is because your factor has already been removed.

If you've found a factor by ECM of a number you haven't reserved, don't bother reserving the number, just submit it to get it removed from the table. If you've found a factor by ECM of a number somebody else has reserved, you're a naughty person.

IT DOES NOT FORWARD THE FACTORS TO THE PROJECT COORDINATOR

so you should send them to Paul yourself ... I do keep a log file on my server if you forget, but please don't.

If it doesn't work for you, mail me at [email]tom@womack.net[/email] and I'll try to fix it.

I've also implemented sort-by-snfs-difficulty, in case people find that useful.

5,3,244+ ECM MISSS
 

[QUOTE=frmky;99603]Oops! I finished that one a few days ago. After Tom completed his reservation system, I stopped checking here for previously reserved composites. Sorry!


I didn't do 5,4,239- since I thought it'd be better for the GNFS crowd. I'll steer clear of all of these.

Greg[/QUOTE]

5,3,244+ C142 = p41.p101

94444153383610016065099207989656900925193

11864397782556880111954414898119162292473191509774866434362653622235777715298268261429439840494178801

I will start filtering 5,4,239- tonight. 5,3,241- is in progress. 5,3,247+
will be next.

[QUOTE=frmky;99603]Oops! I finished that one a few days ago. After Tom completed his reservation system, I stopped checking here for previously reserved composites. Sorry!


I didn't do 5,4,239- since I thought it'd be better for the GNFS crowd. I'll steer clear of all of these.

Greg[/QUOTE]

I believe that I said some time ago that I would do ALL of 5,x+ and 5,x-
to exponent 250.

The reservation system requires the ECMNET client. I don't use it.

This is a new reservation system which I wrote last weekend, out of frustration after becoming the third person to factor 5^267+3^267. It's intended for people doing sieving, and has nothing to do with the ECMNET client; it's entirely Web based.

[url]http://www.chiark.greenend.org.uk/ucgi/~twomack/homcun.pl[/url]

I have marked as reserved (by 'pp R D Silverman') the numbers that you've mentioned working on.

[QUOTE=fivemack;99675]This is a new reservation system which I wrote last weekend, out of frustration after becoming the third person to factor 5^267+3^267. It's intended for people doing sieving, and has nothing to do with the ECMNET client; it's entirely Web based.

[url]http://www.chiark.greenend.org.uk/ucgi/~twomack/homcun.pl[/url]

I have marked as reserved (by 'pp R D Silverman') the numbers that you've mentioned working on.[/QUOTE]

Nice! Thanks.

Update
 

I've just posted updated tables to my web page. There are 40-odd new factors and the number of composites is now down to 143.


I thought this was rather impressive:
[quote]
A factor was found for 5+2_277 using GMP-ECM using factor method ECM
Candidate number: 202875312687541757269271740219355440033649342785815953229963125579253286840163867402509419209979452875508620578371838115105393883944308296320759042808681
Factor: 429562604305813364662264031550519441024533818964219
Factor Type: probable
Co-Factor: 472283459160497973769306257505422058251845307407160715703718863511009433876593610614773747877137029099
Co-Factor Type: Probable
B1: 3000000
Sigma: 1568977611
Finder: jgchilders @ uk-alumni . org
Found on machine: itifrea-linux[/quote]

Nice one Greg!


Paul

[QUOTE=xilman;99987]

I thought this was rather impressive:

<[I]heueuge ECM factor[/I]

Nice one Greg!


Paul[/QUOTE]Damn! :shock:

This makes me feel better about plowing 150 GHz-days into SNFS factorizations. Good to know that these numbers are getting some ECM work.

More like this, please.

:popcorn:

[QUOTE=xilman;99987]I've just posted updated tables to my web page. There are 40-odd new factors and the number of composites is now down to 143.


I thought this was rather impressive:
[/QUOTE]

A pp51 with B1 = 3M - WOW!