Question 1138833
<pre>
Since N is a multiple of 3 and divisible by 5, it is a multiple of 3×5 or 15,
and the only multiple of 15 between 3 and 27 inclusive is 15 itself.
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15 works. It's odd, a multiple of 3, √15 is not an integer, and it's
divisible by 5.

Answer: 15

Edwin</pre>