I tried with five just to check out how modulo worked

https://en.wikipedia.org/wiki/Modulo_operation

I expected the output to look like this:

1 2 3 4

Why? Modulo is the remainder of the division. 0 divided by 5 is 0, remaining 0. 1 divided by 5 is 0, remaining 1. 2 divided by 5 is 0, remaining 2. 3 divided by 5 is 0, remaining 3. 4 divided by 5 is 0, remaining 4. 5 divided by 5 is 1, remaining 0. 6 divided by 5 is 1, remaining 1. And so on.

Alexander

totally mistaken on modulo.my bad..

I get it and thank you!

I guess , what I wanted to get out of this was the quotient NOT the remainder

so if I divide the number 20 by 5, I want the quotient 4. ok, let me try this again

then ,next step, is to write a program to find the smallest number that are evenly divided by all the given max_range numbers. ie: like 0-10.

use strict;
use warnings;
use integer;
use constant number => 5;
my %result;
for ( my $i=0; $i<=20 ;$i++){
    #my ($quo, $rem)= ($i/5, $i%5); #need to understand modulo 
    #print "this is quotient",$quo,"when this is divident $i \n";
    #print "this is remainder",$rem,"\n";
     if ($i%5==0 && $i!=0){
         print "this is the quotient",$i/5,"\n";
         print "this is the divident",$i,"\n";
         }
    }
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I think you might benefit from the use of intin order to chop off the fractional component for $quo.

Please read Corion again!

Is there difference between printing, what modulo operator returns and using it to test?

i.e

  print 4%2;
  # or
  if (4%2 == 0) {
    # blah..blah...
  }
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print, you are performing the task print

while when you use IF then you are checking to see if the statement is true or false, If true then go and do what's inside the brackets. False, then don't go inside the brackets