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.


     July 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  
_2_2 23 24 25 26 27 28  
29 30 31              
                      


    August 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 31