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Old 2006-07-27, 21:18   #23
grobie
 
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370,000 - 400,000 complete (No Primes) residue sent to Kosmaj
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Old 2006-08-02, 15:47   #24
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grobie is working on 400-450.

I'm still sieving the rest, currently at p=6.2T
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Old 2006-08-08, 01:44   #25
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n=429318 Prime Confirmed
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Old 2006-08-11, 09:11   #26
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Quote:
Originally Posted by grobie
n=429318 Prime Confirmed
400 to 450 complete 1 confirmed prime.
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Old 2006-09-09, 02:27   #27
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The 450k-2M range is now sieved to 8T. There are 81632 candidates or 52.67 per 1000 n's. The prevailing opinion is that g167 most likely checked the range to n=601158 where he found a prime. Therefore, I'm releasing both 450-500k files which have a certain double-checking "flavor" and files from 600k where a new prime is more likely.

This is a long term project and we are not in hurry. Feel free to check one of these files as you like. But I'd like to propose the following: if/when somebody finds a prime at n>600k he is obliged to test a few n<600k files if by that time there are still some left unprocessed

BTW, here are FFT lengths used by LLR (versions 3.6 and 3.7) to test primality of 17*2^n-1 (output of Thomas' fft_len) on Pentium-4 cpu's:

Code:
    fftlen       nmax
-----------------------
     24576     454369
     28672     528898
     32768     604426
     40960     751484
     49152     895042
     57344    1040800
     65536    1191057
     81920    1480573
     98304    1765088
    114688    2052604

Last fiddled with by Kosmaj on 2006-09-09 at 02:31
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Old 2006-09-19, 05:38   #28
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Taking 600-605.
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Old 2006-09-19, 16:42   #29
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I'll take 605-610 and 610-615

Last fiddled with by segmtfault on 2006-09-19 at 16:48
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Old 2006-09-20, 04:36   #30
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Taking 615-620
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Old 2006-09-20, 05:46   #31
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Huge congrats to Alex on the first NEW k=17 prime found by RPS:
17*2^605394-1, 182243 digits

I have to say I didn't expect anything before 620-630k, even higher. :surprised

This is now a one-way street, and primes are straight ahead!
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Old 2006-09-20, 08:56   #32
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Thanks
I didn't expect a prime so early myself
Well I guess you can already pre-reserve 450-460 for me then
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Old 2006-09-20, 09:15   #33
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All right, 450-460 is yours!

I'm also taking 620-625.
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