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Thread: Small n factoring

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  1. 01-07-2006, 06:52 PM #1
    Mystwalker
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    New status:

    Code:
    		25	30	35	40			

21181,1148	ok	ok	ok	ok
21181,1172	ok	ok	ok	ok
10223,1181	ok	ok	ok	ok
21181,1268	ok	ok	ok	ok
10223,1517	ok	ok	ok	reserved
24737,1567	ok	ok	ok	reserved (44.8%)
55459,1666	ok	ok	ok	reserved
55459,1894	ok	ok	ok	reserved (69.8%)
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  2. 01-23-2006, 11:49 AM #2
    vjs
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    I see Mike_H found a bunch of small n factors between 30K and 60K...

    Looks good mike were those P-1 and what bounds were you using just wondering.
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  3. 01-23-2006, 03:58 PM #3
    MikeH
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    Quote Originally Posted by vjs
    Looks good mike were those P-1 and what bounds were you using just wondering.
    Most of those recent successes were with ECM (using B1, B2 and curves which equate to 18 digits).

    I had been P-1ing, but I seem to have hit a bit of a drought, thus the switch to ECM. I'll probably be back on P-1 again soon.
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  4. 01-23-2006, 05:33 PM #4
    Mystwalker
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    Do you have a status update of your ECM work (like here)?
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  5. 02-02-2006, 05:14 PM #5
    MikeH
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    Quote Originally Posted by Mystwalker
    Do you have a status update of your ECM work (like here)?
    Code:
    Complete
[Mon 02-Jan-2006 22:10:14]  ECM: Range    30000-50000    (20000), 18,       375 candidates 
[Sat 21-Jan-2006 14:56:17]  ECM: Range    50000-70000    (20000), 18,       393 candidates 

In progress
[Sun 22-Jan-2006 17:54:07]  ECM: Range   100000-200000   (100000), 18,      K=67607,    124 candidates 
[Wed 01-Feb-2006 22:19:55]  ECM: Range    70000-80000    (10000), 18,       189 candidates
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  6. 02-06-2006, 06:01 AM #6
    Greenbank
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    What B1 and B2 are you using for 18 digits? At a guess I'd say:-

    B1 = 10000 B2 = 1500000 ?

    And how many curves max?

    What about B1 and B2 for P-1? The same?
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  7. 02-06-2006, 12:40 PM #7
    MikeH
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    66 ECM curves, B1=7400, B2=740000

    Need to review where I'm at with the P-1 stuff, but I've been working with B1=B2, then when I get bored I'll do a B2=B1*100 then call it a day (probably).

    EDIT:

    Current status of P-1 testing is:

    Complete:
    Code:
    P-1: Range      991-   5000    B1=100000000, B2=100000000
P-1: Range     5000-  20000    B1=15000000, B2=15000000
P-1: Range    20000- 100000    B1=1000000, B2=1000000
P-1: Range   100000-1000000    B1=600000, B2=600000, K=67607
    Last edited by MikeH; 02-06-2006 at 12:55 PM.
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  8. 02-11-2006, 12:15 PM #8
    MikeH
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    Another update on ECM
    Code:
    In progress
[Thu 09-Feb-2006 23:11:03]  ECM: Range     6000-25000    (19000), 25,       294 candidates 
[Wed 01-Feb-2006 22:19:55]  ECM: Range    70000-80000    (10000), 18,       189 candidates 
[Sat 04-Feb-2006 16:02:40]  ECM: Range    80000-100000   (20000), 18,       415 candidates 
[Sun 22-Jan-2006 17:54:07]  ECM: Range   100000-200000   (100000), 18,      K=67607,    124 candidates
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  9. 02-11-2006, 04:04 PM #9
    Nuri
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    Thanks Msytwalker. I'll report back in acouple of weeks when I have sufficient data.

    BTW, as I've already tested all of the candidates to B1=100000 B2=1000000, it's not efficiency of P-1 vs ECM. It's more like marginal efficiency of ECM vs P-1 to find the remaining factors for already easier to find ones found.
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  10. 04-26-2006, 11:57 AM #10
    Mystwalker
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    New status:

    Code:
    		25	30	35	40	45

21181,1148	ok	ok	ok	ok	reserved (kroberts5)
21181,1172	ok	ok	ok	ok	reserved (kroberts5)
10223,1181	ok	ok	ok	ok	reserved (kroberts5)
21181,1268	ok	ok	ok	ok
10223,1517	ok	ok	ok	ok
24737,1567	ok	ok	ok	reserved (66.0%)
55459,1666	ok	ok	ok	reserved (45.2%)
55459,1894	ok	ok	ok	ok
    No new factor found so far.
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  11. 06-04-2006, 07:17 AM #11
    Mystwalker
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    New status:

    Code:
    		25	30	35	40	45

21181,1148	ok	ok	ok	ok	reserved (kroberts5)
21181,1172	ok	ok	ok	ok	reserved (kroberts5)
10223,1181	ok	ok	ok	ok	reserved (kroberts5)
21181,1268	ok	ok	ok	ok
10223,1517	ok	ok	ok	ok
24737,1567	ok	ok	ok	reserved (89.5%)
55459,1666	ok	ok	ok	ok
55459,1894	ok	ok	ok	ok
    Factors still refuse to be discovered.
    In a week or two, the 40 digit level should be complete.

    What's you status, kroberts5?
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  12. 06-07-2006, 10:51 PM #12
    Keroberts1
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    i actually have no idea my computer got fried a month ago and i recently aquired a new system with an AMD64 and I'm still waiting ot get it running on ecm-gmp. I don't remember how to get it running though. I don't even have the program and i don't remember how to get .tar file to work. I haven't really played much with any computers since i starte the thing running a few months ago. I'm more of a point and click kind of guy. Some help though and i would be back on track in no time.
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  13. 06-10-2006, 09:38 AM #13
    Mystwalker
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    This guide should help you.
    The versions of the programs have changed to GMP 4.2.1 and ECM 6.1, though. In addition, ECM 6.1.1 will be out "soon", so maybe you want to wait. On the other hand, it's not that hard to compile a new version once you're familiar with the process...

    Unfortunately, I have no AMD64-equipped PC, so I can't provide you with optimized binaries...
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  14. 06-11-2006, 05:10 PM #14
    Keroberts1
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    ok i have it installed but what do i do when running it i selected run from the start menu and found the directory to run it from but i can't remember the format to give the inputs with. once again any help is appreciated
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  15. 06-23-2006, 01:32 AM #15
    Keroberts1
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    qnyone all I need is the command format for calling the program I know the first is the B1 bounds thats all I'm sure about
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