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-   -   Riesel Primes k*2^n-1, k<300 [Part II] (https://www.mersenneforum.org/showthread.php?t=8621)

Happy5214 2008-11-21 23:06

k=37
 
Hi, I'm Happy5214.

I don't know if Kosmaj mentioned this to you, but back in March, I reserved k=37 n>800K. I have finally started work on it. It will be hosted on my personal forums at my website. The sieve post will be added to that forum.

Website: [URL="http://happy5214.no-ip.org"]happy5214.no-ip.org[/URL]

Work: Sieving n=800-900K

Thanks

-Happy5214

Kosmaj 2008-11-22 08:56

Happy,

k=37 is already tested to 1M.
Let me know if you want to pursue higher ranges or switch to another k.

Happy5214 2008-11-22 15:27

[SIZE=1]It would have been nice to know that before I did all that sieving.

[SIZE=2]Yeah, I will pursue higher ranges. Sieving 1-1.5M.

-Happy5214
[/SIZE][/SIZE]

VBCurtis 2008-12-03 22:44

Updates on the k's sieved by Cruelty and handed down to me:
109 800k
131 735k
141 800k
221 860k
281 735k

Steven has taken over testing k=221 from me- like Cruelty, I plan to find a prime for each k and then hand it off to someone else.

Buzzodan searched these k's in 765-800k range, and is continuing to assist with some of the k's above 800,000. I am actively searching 131 and 281 (and 211, which he also did on 765-800) to close the gap to his completed range.
Once again, thanks to Cruelty for providing a file sieved to 50T.
-Curtis

Thomas11 2008-12-09 11:33

k=29
 
k=29 has been tested up to n=2M now. No new primes found.

amphoria 2008-12-09 19:18

k=81
 
k=81 complete to n=1.34M. Releasing this k now.

I have a sieve file up to n=2M sieved to p=30T if anyone would like continue with this k.

Happy5214 2008-12-15 22:31

k=37, 19
 
Hi, it's me.

k=37 tested to n=1011K, no primes found.

Reserving k=19, will start when k=37 catches up to n=1206K.

Thomas, it says on the stat page that k=29 has been released. Excuse me if I missed something earlier, but did you actually release that?

-Alexander Jones

VBCurtis 2008-12-24 22:11

415 complete to 555k. Prime found at 548359, reported Monday by Gary. Alas, I was on vacation and unable to report it myself.

I am continuing with this k after a sizable break- the machine running it died, and it took me quite a few months to recover the data from it (including sieves for 405 and 415). Work on 405 will continue from 600k after some more sieving.

-Curtis

kar_bon 2009-01-05 12:48

k=297 at n=813k

reserving k=251 from n=805k on

Cruelty 2009-01-09 22:32

Status report
 
k=25 continuously tested till n=2.08M
k=59 continuously tested till n=2.23M
k=101 continuously tested till n=1.83M
k=151 continuously tested till n=1.83M
k=233 continuously tested till n=1.13M
k=283 continuously tested till n=1.13M
k=299 continuously tested till n=1.13M

I am still working on those :flex:

VBCurtis 2009-01-10 09:50

I have many gaps to fill in the next few weeks, but here are some up to date ranges:
13 complete to 1.8M (was 1.6M).
43 complete to 1325k (was 1000k)
127 complete to 2.0M (was 1.85M)
-Curtis


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