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.


    October 2018      
Su Mo Tu We Th Fr Sa  
    1  2  3  4  5  6  
 7  8  9 10 11 12 13  
14 15 16 _1_7 18 19 20  
21 22 23 24 25 26 27  
28 29 30 31           
                      


   November 2018      
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