mersenneforum.org TF'ers: what's your longest streak?
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2012-11-10, 03:46   #1
ixfd64
Bemusing Prompter

"Danny"
Dec 2002
California

23·33·11 Posts

I'm just curious: what's the highest number of factors you've found in a row?

My personal record is three. What's even more impressive is that I found them on my 1.7 Ghz Pentium M laptop.

Quote:
 [Thu Oct 25 15:23:07 2007] UID: S372484/C009AA656, M44674277 has a factor: 15365884855639998191 [Thu Oct 25 15:54:19 2007] UID: S372484/C009AA656, M44723801 has a factor: 10165762344979847143 [Sat Oct 27 04:29:32 2007] UID: S372484/C009AA656, M44745563 has a factor: 181533808571160737567
This was before I merged my PrimeNet IDs into my current one, which explains the strange username and computer name.

Anyone have a longer "combo"?

Last fiddled with by ixfd64 on 2012-11-10 at 03:49

 2012-11-10, 06:25 #2 Batalov     "Serge" Mar 2008 Phi(4,2^7658614+1)/2 41·229 Posts In May, I had a (double) blip that changed the scale of my plot forever. I believe that that was two threes in a row. Attached Thumbnails
 2012-11-10, 15:45 #3 c10ck3r     Aug 2010 Kansas 547 Posts I don't usually get factors "in a row" per se, but I've had several (read ~5) exponents that I've found 2 factors for in the same bit. (65->66)
 2012-11-10, 16:33 #4 kracker     "Mr. Meeseeks" Jan 2012 California, USA 87916 Posts Does it count when I have ~2500 results and the factors pop to the top?
 2012-11-10, 18:15 #5 petrw1 1976 Toyota Corona years forever!     "Wayne" Nov 2006 Saskatchewan, Canada 32×7×73 Posts four....same PC Code: Sarge 354434863 F 4/5/2009 5:41 Sarge 354426869 F 4/5/2009 5:41 Sarge 354442993 F 4/5/2009 5:43 Sarge 354450181 F 4/5/2009 5:45 3 F-PM1 Code: Hand_In_The_Box 57317831 F-PM1 9/13/2011 4:27 Emperor_Zurg 57924239 F-PM1 9/13/2011 5:55 Emperor_Zurg 57300449 F-PM1 9/13/2011 7:06
 2012-11-10, 21:03 #6 Brian-E     "Brian" Jul 2007 The Netherlands 7×467 Posts Is a negative streak interesting too? During my entire GIMPS history I have done 140 TF runs, all between 64-65 and 68-69 bits. Not a single one turned up a factor.
 2012-11-11, 18:48 #7 flashjh     "Jerry" Nov 2011 Vancouver, WA 1,123 Posts I've had a least a couple days with 9 factors. I've also had many days with no factors and I think 1 two-day streak of no factors.
 2012-11-12, 05:17 #8 LaurV Romulan Interpreter     Jun 2011 Thailand 249916 Posts It heavily depends of the ranges and bit deepness you do. When I helped Uncwilly to clear the 100-digits (332M and 333M) range to 69/70 bits I found 140 factors in 10 days, and many other later when I extended the 332M to 70/71 bits. That makes average 14 factors per day, but I would consider a bigger success when running 60M assignments to 72-73 bits and find a factor every few days. Edit: if you need lots of factors, pick a high range with low bit limit, say like 3xxM to 70 bits, and put your GPU on it for a week. You still can find a factor every few hours. Last fiddled with by LaurV on 2012-11-12 at 05:19
2012-11-12, 05:52   #9
Uncwilly
6809 > 6502

"""""""""""""""""""
Aug 2003
101×103 Posts

19×499 Posts

Quote:
 Originally Posted by LaurV Edit: if you need lots of factors, pick a high range with low bit limit, say like 3xxM to 70 bits, and put your GPU on it for a week. You still can find a factor every few hours.
I approve of this post.

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