20200706, 17:00  #1662 
Nov 2016
100001101010_{2} Posts 
The "top 10 primes" for R55 has the prime 68*55^291731, however, 68*55^11 = 3739 is prime, thus this prime is not the first prime for k=68

20200706, 17:33  #1663  
May 2007
Kansas; USA
5^{2}·11·37 Posts 
Quote:
Good catch. This revealed an error in this base. k=608 (not k=68) was only tested up to n=25K. No prime was found. From this point forward k=608 was misread as k=68 and so k=68, despite having several small primes including at n=1, was tested for n>25K with a prime quickly found at n=29173. So this brings to light the fact that k=608 has only been tested to n=25K and has never had a prime found. I have updated the pages accordingly including removing the larger prime for k=68 and will begin a search 608*55^n1 for n>25K. Last fiddled with by gd_barnes on 20200706 at 17:58 

20200706, 20:15  #1664 
May 2007
Kansas; USA
27BF_{16} Posts 
An odd state of affairs here:
After all of that messing around with sieving 608*55^n1 for n=25K100K (and preparing to sieve n=100K300K) because it was found to erroneously only have been tested to n=25K: 608*55^250621 is prime! Found by the 5th test in the sieve file! So R55 is back to 5 k's remaining. Last fiddled with by gd_barnes on 20200706 at 20:15 
20200719, 05:41  #1665 
Sep 2011
Germany
977_{16} Posts 
Reserving S88 to n=500k (250500k) for BOINC

20200721, 18:11  #1666 
Dec 2011
After milion nines:)
2·653 Posts 
S 53
K4 S53 at 1.61M
S53 200K305K res sent to Gary Base released ( except K4 of course) 
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