Question 981486
the number 1125 has prime factors of 3's and 5's only (3x3x5x5x5). how many
positive perfect square numbers other than 1 are factors of 1125.
<pre>
1.   3&#8729;3 = 3² = 9,
2.   5&#8729;5 = 5² = 25,
3.   (3&#8729;5)&#8729;(3&#8729;5) = (3&#8729;5)² = 15² = 225 

Edwin</pre>