mersenneforum.org Riesel Primes k*2^n-1, k<300 [Part II]
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 2010-09-01, 22:22 #386 Cruelty     May 2005 2·809 Posts Status report k=25 tested till n=2.42M k=43 tested till n=2.31M k=101 tested till n=2.55M k=151 tested till n=2.45M k=223 tested till n=2.58M
 2010-09-05, 12:47 #387 Kosmaj     Nov 2003 2×1,811 Posts k=7 at 2.6M k=9 at 1814k (all gaps up to here filled) k=21 at 1470k (ditto) k=37 at 1510k k=97 at 1230k k<300 status page updated with this and other results reported above.
 2010-09-06, 12:33 #388 pb386     Nov 2003 23×163 Posts k=19 at 1.5M 1 additional prime found (19*2^1325245-1 is prime!)
2010-09-26, 18:11   #389
MooMoo2

Aug 2010

22A16 Posts

k=161 is complete to n=1118K. No primes found.

I've attached the results from my last update (at n=1060K) to this point.
Attached Files
 1060-1118.txt (136.5 KB, 55 views)

 2010-09-28, 17:31 #390 MooMoo2     Aug 2010 10001010102 Posts Reserving k=93.
 2010-09-30, 20:01 #391 Cruelty     May 2005 110010100102 Posts Status report k=25 tested till n=2.43M k=43 tested till n=2.34M k=101 tested till n=2.58M k=151 tested till n=2.48M k=223 tested till n=2.63M
 2010-10-12, 12:06 #392 pb386     Nov 2003 23×163 Posts k=19 tested to n=2.21M
2010-10-13, 04:22   #393
VBCurtis

"Curtis"
Feb 2005
Riverside, CA

3×7×199 Posts

Quote:
 Originally Posted by pb386 k=19 tested to n=2.21M
Uhhhh.... you tested 1.5M to 2.2M in FIVE WEEKS?

-Curtis

2010-10-13, 12:35   #394
pb386

Nov 2003

23·163 Posts

Quote:
 Originally Posted by VBCurtis Uhhhh.... you tested 1.5M to 2.2M in FIVE WEEKS? -Curtis
There were some bits that had already been tested but there were 10,224 tests taking about 52 million seconds on 18 cores (which is about 5 weeks).

 2010-10-19, 19:42 #395 Retep     Oct 2007 32·11 Posts Reserving k=51 starting at n=2.5 M
2010-10-20, 03:15   #396
VBCurtis

"Curtis"
Feb 2005
Riverside, CA

3·7·199 Posts

Quote:
 Originally Posted by Retep Reserving k=51 starting at n=2.5 M

If you are only interested in huge primes, I'm sure someone will fill in the gap- but consider testing from our current status at 1M.
-Curtis

Edit- Heck, I'll probly start filling the gap in Jan or Feb if nobody else does...

Last fiddled with by VBCurtis on 2010-10-20 at 03:37

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