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 2017-09-23, 20:18 #309 Dylan14     "Dylan" Mar 2017 1110100102 Posts k = 17851 reached n = 500k, and the primes and residues were posted in the "Post small primes..." thread. I am releasing this k.
 2017-12-02, 19:46 #310 Dylan14     "Dylan" Mar 2017 2×233 Posts Taking k = 17849 from n = 1 M.
 2018-05-31, 04:59 #311 Grotex     "Jiahao He" May 2018 China 1010102 Posts Reserve 1501946985. Grotex.
 2018-06-02, 11:35 #312 Grotex     "Jiahao He" May 2018 China 528 Posts k = 1501946985 reached n = 100k, and get primes: 1501946985*2^52613-1 1501946985*2^67832-1 1501946985*2^80577-1 1501946985*2^84024-1 1501946985*2^86544-1 now going to n = 200k
2018-06-18, 03:40   #313
Grotex

"Jiahao He"
May 2018
China

4210 Posts

Quote:
 Originally Posted by Grotex k = 1501946985 reached n = 100k, and get primes: 1501946985*2^52613-1 1501946985*2^67832-1 1501946985*2^80577-1 1501946985*2^84024-1 1501946985*2^86544-1 now going to n = 200k
k = 1501946985 reached n = 200k, and get primes:
1501946985*2^107544-1
1501946985*2^142461-1
I release this k

 2019-05-30, 07:09 #314 vasyannyasha     "Vasiliy" Apr 2017 Ukraine 22·3·5 Posts 2641908225 Reserving 2641908225 Pre-thanks
2020-03-01, 03:05   #315
Dylan14

"Dylan"
Mar 2017

2×233 Posts

Quote:
 Originally Posted by Dylan14 Taking k = 17849 from n = 1 M.
Update on this search: I have sieved a file up to n = 2M and am testing it.
Has anyone worked on k = 50171 since amphoria released it in 2007 at n = 1.5 M? If not, I'll take it.

 2020-03-18, 02:52 #316 Happy5214     "Alexander" Nov 2008 The Alamo City 2×3×72 Posts For lack of a better place to post my ongoing reservations, I'll dump them here. The mods can move this post if necessary. I'm reserving:All Woodall and near-Woodall k's > 10k with gaps below the (near-)Woodall prime to fill in said gaps:197673 251749 454483 582833 586085 665127 667071 938237 1183953 1195203 1268979 1467763 8508301 (to n=4M only) All k's from the RPS 9th and 10th Drives, 15k < k < 35k, n < 400k, not already complete for that n range. All k's from this range that I've filled in for n < 400k are listed in the Prime-Wiki. There are 120 k's to be filled in, which is probably too many to list here. The following low-weight k's, to n=1M unless otherwise noted:612509 671413 685183 686711 700057 963643 (currently at n=1.5M; sieved to n=2M; double-checking and then will continue until a prime is found) 10453199 (currently at n=2.5M; sieved to n=3.5M; double-checking and then will continue until a prime is found) 10813783 (double-check to n=780k; probably will continue to at least n=1M) 1665624349782373 (sieved to n=1.5M; this will find the n for the prime previously claimed to have been found) The following miscellaneous k's:89925 (to n=630k; already sieved) 242417 (sieved to n=1M) 1549573 (to n=300k; already sieved) 7828821 (sieved to n=1M) All of these reservations, except for the RPS drive k's, are either already up on Prime-Wiki or will be shortly. The RPS drive k's will be posted along with the data from the respective drives at a later date.
 2020-03-19, 05:47 #317 Happy5214     "Alexander" Nov 2008 The Alamo City 12616 Posts I'll also tack on k=14549535 for 125k < n < 300k as a double-check.
 2020-03-25, 15:45 #318 storm5510 Random Account     Aug 2009 U.S.A. 3·13·31 Posts Q.: Is there a good generalized way to search for available k's? This is what I do. I will use "9999" as an example. I will do an entire forum search for "k=9999." Then I would follow that was just "9999." If there are a lot of hits, I look at each and use my browsers' "Find on this page" feature to search. I check the "Top 5000" web site, and the Wiki Riesel Prime database. RPS appears to stay below any Nash value < 1000. It is hard to determine what their k ceiling is at any given time. NPLB, it is difficult to see what they are working on. That area is not updated often. After all this, if I find nothing concrete, I assume any k I search for is fair-game. If there are other places to look, I would like to know what they are. Bottom line: I do not want to step on anyone's toes by running something another person is working on. End of story...
 2020-03-25, 17:14 #319 pepi37     Dec 2011 After milion nines:) 3×5×83 Posts Take any k above 10001 and I am sure 99% you will not in that case step on anyone others theritory Also you have other base then two and software to make sieve for any home project. In other words, you have near countess combination, choose one Last fiddled with by pepi37 on 2020-03-25 at 17:16

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