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Old 2010-12-29, 15:22   #23
fivemack
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457326 at iteration 308, leaving it.

Carrying on with 335172 since it's lost its driver.
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Old 2010-12-29, 16:16   #24
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Quote:
Originally Posted by gd_barnes View Post
Nope, not the DB workers. That was 5-6 cores of an I7 knocking those out. I'll take credit for everything that Serge said was "done already too". I was working these down and reporting statuses every 2-3 days. The DB workers do not do factors C>=95. I wasn't reserving because there had been no interest and I was planning on a status later today. It's odd that 4 different people all of a sudden got interested right at the end. lol

Oh well, it's mostly done now. I'll report one final status later today for historical reference, for what it's worth. :-)
You're sort of 1/4 right there. Syd's local workers do not make it that high, but there are several people running scripts of their own that factor stuff in the range of <100 digits. Not sure how many, though. (Check out the Factor DB thread starting around post #864 (?) or so if you didn't see the discussion....)
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Old 2010-12-29, 21:07   #25
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1/4 right?! ...the story of my life.

I just now checked it out. Thanks for the info.

In the future, I'll reserve stuff even if there appears to be little interest. I guess you never know when people will come around to work on things.

This all brings up something that just crossed my mind and will probably come into play on your project 400:

I was wondering if instead of deleting sequences that are reserved in the 1st posting, that you continue to show them with "reserved" by them until you know that they are done to i>=400. I mention this because it would be easy for someone to reserve 4-5 of them, get distracted by some other project/effort (or have a machine go down), and then forget to finish one or more of them. Although it's a little more admin effort, it would ensure that everything gets done.


Gary
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Old 2010-12-29, 21:09   #26
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Quote:
Originally Posted by Batalov View Post
There were three still remaining. I upped them a bit but don't have time to finish:
949080 (c108) 296 . 409888933.. = 2^3 * 3^2 * 5 * 307 * 742112409.. * 499753244..
392928 (c108) 298 . 369621943.. = 2^3 * 3 * 5 * 140837 * 327089055.. * 949002514..
989616 (c112) 285 . 115087358.. = 2^3 * 3 * 5 * 10608239 <-- didn't touch this one

Carry them on to the 400 thread.

I'm going ahead and working on these to i>=300 and a fully ECM'd factor of C>=95. I should be done with all of them except perhaps 989616 later today. I'll provide a status report at that time.

989616 is the worst one of all. It is at size 112 at i=285. Calculating the # of indexes for each increse in digit, we have (112-6) / 285 = 2.689. (Subtracting 6 because that's the # of digits in the sequence itself.) I looked at all of the rest of the sequences listed when this effort started and nothing comes close.

Can anyone find a sequence <= 1M that rises faster than 1 digit every 2.689 indexes? How about <= 2M or <= 3M? The requirement is that the sequence would have to be at size >= 110.

Last fiddled with by gd_barnes on 2010-12-29 at 21:18
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Old 2010-12-30, 01:56   #27
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Work completed by me; a few of the sequences were already partially done by others:

274848 307. sz 113 C106 2^5 * 3 * 5^2 * 7
367968 310. sz 112 C97 2^3 * 3 * 5^2 * 7
392928 303. sz 110 C101 2^3 * 3 * 5 * 7^2
425280 312. sz 116 C111 2^3 * 3
444320 304. sz 110 C101 2^3 * 3 * 5 * 11
555300 300. sz 107 C99 2^3 * 3 * 5
580368 304. sz 107 C104 2^4
609960 307. sz 112 C97 2^3 * 3 * 5^3
664470 312. sz 113 C110 2^3 * 3^2 * 5
861000 303. sz 111 C97 2^4 * 3^3 * 7^2 * 31
873738 323. sz 115 C95 2^3 * 3 * 5^2
949080 307. sz 113 C96 2^3 * 3^3 * 5 * 7
958578 319. sz 113 C99 2^3 * 3 * 5 * 19
998316 304. sz 110 C108 2 * 3^3 * 5

The only sequence remaining for i<300 is 989616, which is at i=285, size 112. I am working on it now.
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Old 2011-01-01, 22:13   #28
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335172 at 116 digits, C112 left over, 2^4*3*5. It had a nice plateau at 110 digits for more than a hundred iterations, but is now floating away. I've stopped working on it.
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Old 2011-01-04, 18:13   #29
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989616 is finally complete to i>=300 and released. Status:

989616 301. sz 117 C115 2^3 * 3 * 5

This now completes all sequences < 1M to i>=300. Like I mentioned before, 989616 is by far the worst sequence < 1M...it's at 117 digits at just i=301!
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Old 2011-08-12, 17:45   #30
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989616 is now complete to i>=400. Still growing (missed a chance to lose 2^3*3*5 at i=398) but I'm not taking it any further.
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