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Old 2012-03-30, 16:42   #45
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Quote:
Originally Posted by rogue View Post
I noticed that. Now I just need to find one myself.

Note that this could be a screamer app if run on a GPU. I've thought about it, but I just don't have the time necessary for it.
I did the same, and have some very rough code to start with. And the correct GMP libraries to implement mp math on CUDA...

What I desperately lack is time.

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Old 2012-03-30, 18:26   #46
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Quote:
Originally Posted by ET_ View Post
I did the same, and have some very rough code to start with. And the correct GMP libraries to implement mp math on CUDA...
I would suggest aiming for OpenCL for the main reason that one wouldn't be locked into using NVIDIA. Most Macs have ATI cards, which can't run CUDA.
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Old 2012-07-09, 10:11   #47
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Default 300th Fermat factor found!

July 7th, 2012
300th Fermat factor found!
20018578522347 . 288+1 is a Factor of F86!!!.
The factor was discovered by Michael Dangler of USA, using Mark Rodenkirch's program GMP-Factor, and is the ninth factor discovered this year.
The factor was found using this environment:
  • Windows 7 Home Premium 64-bit Operating System
  • Toshiba Satellite P775
  • Intel(R)Core(TM)i7-2670QM CPU @2.20GHZ 6.00 GB Memory

Michael found the factor on its eleventh test-range, after only a few months of testing.
Congratulations from the team of FermatSearch!
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Old 2012-07-10, 16:04   #48
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July 10th, 2012
New Fermat factor after 3 days!
2674670937447 . 2171+1 is a Factor of F166!!!.
The factor was discovered by Roman Maznichenko from Russia using a AMD FX-8120 @3800MHz and his version of Mark Rodenkirch's GMP-Fermat. This is the fourth factor found by GMP-Fermat, and the second found by Roman Maznichenko.
We have discovered 9 factors in less than 7 months, the same total of the whole 2011, and we keep going!


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Old 2012-09-26, 06:07   #49
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(branched the GFNs to a separate, eponymous, thread)

I do however hope that this thread, too, will get extended soon, any day now. I am still searching for the word "has"!
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Old 2012-10-09, 13:13   #50
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Not with mmff (this was with newpgen + pfgw), but still:

143918649*2^4654+1 is a Factor of F4652.
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Old 2012-10-09, 13:22   #51
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Not with mmff (this was with newpgen + pfgw), but still:

143918649*2^4654+1 is a Factor of F4652.
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Old 2012-10-09, 17:26   #52
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yay!
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Old 2012-10-10, 05:12   #53
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Yarrrr! Two thumbs up! kotgw!
Our factor is cornered, we will catch him soon...
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Old 2012-11-07, 00:06   #54
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I see that this wasn't posted:

1207*2^410108+1 divides F410105

discovered by Scott Brown via PrimeGrid's PPSElow project on PRPNet
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Old 2012-11-07, 00:37   #55
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I was wondering why there was that gap in W.Keller's reservations:
Code:
...
    73001-80000      20*10^3 
    80001-390000     10*10^3  Updated! 
   390001-450000      1200  
   450000-925000     10*10^3  Updated! 
...
Now, it is clear.

Nice find! (and just at the border of the interval)
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