20130110, 06:47  #1 
"Lennart"
Jun 2007
2140_{8} Posts 
S/R Base 5 Primes reported in 2013
Last fiddled with by Lennart on 20130110 at 06:49 
20130110, 22:20  #2 
Nov 2010
11001_{2} Posts 
And another  what a great start to the year :)
162434*5^8560041 is prime! http://primes.utm.edu/primes/page.php?id=110682 
20130325, 17:29  #3 
"Lennart"
Jun 2007
2140_{8} Posts 
Last fiddled with by Batalov on 20130617 at 01:10 Reason: (removed http://http:// from link) 
20130326, 14:02  #5 
Oct 2002
France
2·5·13 Posts 
And this is the first Sierpinski found for SR5.
Congratulation. 
20130531, 09:22  #6 
"Lennart"
Jun 2007
460_{16} Posts 
http://primes.utm.edu/primes/page.php?id=114281
70082 · 5^936972  1 is Prime Found by Scott Brown Lennart 
20130603, 12:45  #9 
Dec 2011
After milion nines:)
10110001011_{2} Posts 

20130603, 13:06  #10 
"Lennart"
Jun 2007
2^{5}·5·7 Posts 
No !! We need to search to see that there are no smaller primes on those k. Lennart Last fiddled with by Lennart on 20130603 at 13:06 
20130603, 16:44  #11 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
41·229 Posts 
Right, not from PRPnet (the results start with n>=1,000,000).
But two K's can be excluded from the master 2M5M sieve file. I will upload the LLR residues to the sieve server (or I can email them). This could save some time on the upcoming Challenge  quite a few results will be validated with one test with nohasslenowait credit to the participants. 
Thread Tools  
Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
S/R Base 5 Primes reported in 2016  Joe O  Sierpinski/Riesel Base 5  5  20160821 17:47 
S/R Base 5 Primes reported in 2015  Joe O  Sierpinski/Riesel Base 5  3  20160314 04:35 
S/R Base 5 Primes reported in 2014  Joe O  Sierpinski/Riesel Base 5  1  20160314 04:30 
S/R Base 5 Primes reported in 2012  odicin  Sierpinski/Riesel Base 5  16  20130109 20:18 
S/R Base 5 Primes reported in 2011  Joe O  Sierpinski/Riesel Base 5  16  20111205 09:17 