Reserving k = 249 and k = 109 at 2M.

249 is the k<300 with the lowest largest-known-prime, at 251036. I will test this k just until I find a prime, or lose interest.

[QUOTE=VBCurtis;395710]249 is the k<300 with the lowest largest-known-prime, at 251036. I will test this k just until I find a prime, or lose interest.[/QUOTE]

Well, that was fast. 249 has a prime at 2001627. I stopped the second core at 2055k, so I'll let the first core finish its 2000-2050 range and unreserve 249 at 2055k in a couple weeks.

k=25 tested till n=3.34M
k=43 tested till n=4.32M
k=79 tested till n=2.84M
k=101 tested till n=4.46M
k=151 tested till n=3.93M

I just uploaded the updated [URL="http://www.15k.org/riesellist.html"]k<300 status page[/URL]. And sorry for the delay.

My recent progress:
k=21 at n=2890k
k=297 at n=2M

k=281 complete to n=2M, one prime found (281*2^1860862-1), releasing this k.

Taking k=293 from n=1850k to n=2M.

Latest RPS300 file.

status report
 

k=25 tested till n=3.37M
k=43 tested till n=4.37M
k=79 tested till n=2.87M
k=101 tested till n=4.5M
k=151 tested till n=3.95M

13 @ 3.11M
45 @ 2.15M
93 @ 1.72M
99 @ 2.1M
127@4.15M
167@1.77M
197@ 2M
201@ 1.77M
229@ 1.64M
231@ 1.57M
245@ 2.08M

Current resources are 15 haswell cores, 5ish older desktop cores. Each k below 2M has 2 or more cores on it until 2M is reached.

k=293 complete to n=2M, no primes, releasing.

Taking k=263 from n=1615k to n=2M.

k=263 complete to n=2M, one prime found: 263*2^1904406-1, releasing this k.

Taking k=233 from n=1710k to n=2M.

Latest RPS300 file.