Prime numbers calculated by PERL/CGI script

This program prints out all the prime numbers <= n
Enter an integer n as an upper limit:



See the script of the primes.cgi PERL/CGI statements, which illustrates many techniques and strategies.


   November 2017      
Su Mo Tu We Th Fr Sa  
          1  2  3  4  
 5  6  7  8  9 10 11  
12 13 14 15 16 17 18  
19 _2_0 21 22 23 24 25  
26 27 28 29 30        
                      


   December 2017      
Su Mo Tu We Th Fr Sa  
                1  2  
 3  4  5  6  7  8  9  
10 11 12 13 14 15 16  
17 18 19 20 21 22 23  
24 25 26 27 28 29 30  
31