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

Cruelty 2013-07-31 23:13

status report
 
k=25 tested till n=3.03M
k=43 tested till n=3.47M
k=79 tested till n=2.42M
k=101 tested till n=3.62M
k=151 tested till n=3.42M

MooMoo2 2013-08-01 01:14

I've been away for quite a while (the last time I worked on a distributed computing project was back in February '11, when I crunched k=161 for RPS).

But I'm back, so I'll start things off by reserving k=81.

amphoria 2013-08-01 14:03

k=49 at n=3.33M (prime at n=3309087).

I was going to release this k if the prime had been > 1 million digits. Because I just missed out I have decided to continue searching. The last gap was a big one so I am hoping the next one will be much smaller. :smile:

unconnected 2013-08-08 05:07

[URL="http://primes.utm.edu/primes/page.php?id=114949"][B]33*2^2513872-1 ([/B]756753 digits)[/URL]

sjtjung 2013-08-22 09:29

Update
 
k = 31, the machine that runs this k is back in CA with parents. I haven't had a chance to check it, so I'll say no progress on this for now.

k=207 has been tested up to 1342k

k= 221 has been tested up to 1500k

Kosmaj 2013-08-22 10:54

Hi Steven

Great news about k=221, I was afraid you forgot about it! :smile:

Please concentrate now on k=207 up to n=1.4 or 1.5M, after that you can have a (short) break!

Lennart 2013-08-22 11:14

Reserving k=139


Is it free ???


Lennart

Kosmaj 2013-08-22 11:17

Hi Lennart,

Yes, it's free, already tested up to n=1585k.

Thanks!

Lennart 2013-08-28 12:43

Status

k=139 tested to n=1.7M

Lennart

Chaos13 2013-08-29 01:03

update
 
k=213 is tested up to 1160k.
I should have an update on progress to 1200k posted by Sept. 4th. Sorry I'm a bit behind on it currently. I'll be making more steady progress again going forward.

amphoria 2013-08-30 22:00

k=49 at n=3.37M


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