YOU DO THE MATH!
'(<a href="http://www.j-archive.com/media/2009-07-14_DJ_03.jpg" target="_blank">Sarah of the Clue Crew shows the numbers 18, 33, & 165 on the monitor.</a>)  An easy way to find the common divisor here is to simply <a href="http://www.j-archive.com/media/2009-07-14_DJ_03a.jpg" target="_blank">add up</a> each number's digits, & each sum will be divisible by this number'
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