20080207, 17:25  #221 
May 2007
Kansas; USA
11136_{10} Posts 
Reserving Sierp base 6 k=10107, 13215, and 14505. I'll take them up to about n=60K or until I find primes or get tired of them.
I may combine them in with team drive 3 after hitting n=60K. Gary 
20080207, 22:29  #222 
Jan 2006
Hungary
100001100_{2} Posts 
Confirmed by pfgw:
4001*28^561461 is a probable prime. Time: 1318.830 sec. Please credit George Woltman's PRP for this result! Tralala, Willem. 
20080208, 20:35  #223 
May 2007
Kansas; USA
2B80_{16} Posts 
Sierp base 12 k=404 is complete to n=100K. No primes. Now unreserved.
Sierp base 6 k=10107, 13215, and 14505 are complete to n=60K. No primes. Now unreserved. Sieved file links up to n=100K are on the reservations web page. Gary 
20080210, 01:02  #224 
"Mark"
Apr 2003
Between here and the
1101000011010_{2} Posts 
I'm reserving the remaining base 30 Riesel values for 25k < n < 100k
659 (25K) 774 (25K) 1024 (25K) 1580 (25K) 1642 (25K) 1873 (25K) 1936 (25K) 2293 (25K) 2538 (25K) 2916 (25K) 3253 (25K) 3256 (25K) 3719 (25K) 4372 (25K) 4897 (25K) 
20080210, 04:47  #225 
May 2007
Kansas; USA
10101110000000_{2} Posts 

20080216, 17:24  #226 
Jan 2005
479 Posts 
After a draft of 10k n’s without primes, there are two in a row:
83988*31^417061 is prime 111038*31^421971 is prime Jippee That leaves 11 candidates on Riesel 31 (26064 candidates to test upto 100k) 
20080217, 12:23  #227 
Sep 2005
Raleigh, North Carolina
337 Posts 
Riesel base 30 k=225, 239, 249 only testing to n=50k forgot to say how far I was going when I reserved these.
Last fiddled with by gd_barnes on 20100511 at 05:12 Reason: remove base > 32 
20080220, 00:19  #228 
Sep 2005
Raleigh, North Carolina
337_{10} Posts 
Riesel Base 30 k=225, 239, 249 tested to n=50k No Primes found, releasing these. Results emailed, let me know if you got them.

20080221, 01:31  #229 
"Curtis"
Feb 2005
Riverside, CA
1010100001100_{2} Posts 
base 16 k=443 complete to 550k base 2 (~135k base 16). LLR in progress 550650k and 650kup. I have sieved to 1.2M fully, and started a sieve from 1.2M to 3M (750k base 16).
I *will* defeat this k. 5076 base 28 finally in progress, should be complete tomorrow sometime to 25k, no further reservations. Apologies for the delay. Curtis 
20080221, 05:19  #230  
May 2007
Kansas; USA
25600_{8} Posts 
Quote:
If you can find a prime for k=443 where n==(4 mod 8), that eliminates the equivalent of k=443 in 3 different bases at once. Good luck with THAT! Gary 

20080223, 13:48  #231 
Jan 2006
Hungary
2^{2}×67 Posts 
Status update
Hi everyone,
First of all: Thank you Gary for tracking all this! Your webpage make this obscure corner of the prime world easy to track. I've finished some of my range, alas without primes: 233*28^n1 100000 1422*28^n1 100000 1611*22^n+1 200000 588*30^n+1 100000 278*30^n+1 100000 I still have (32  65  155) *26^n+1, it is at 95219 now. It stalled because other people keep using that PC. Maybe this week I'll clean up. My project on k*19^n1: With PFGW I found ca 5000 k's remaining after taking n until 2000. With srsieve and LLR I've taken these to n = 5700. I now have 2200 k's remaining. Currently I am planning to take them to 25k. That's going to take two months or more. Having fun, Willem. 
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