Which is the smallest number divides 2800 and gives a perfect square. Pick one:  A) 5  B) 6  C) 7  D) 8  E) 9
7 is the smallest number which divides 2800 and gives a perfect square.   As 2800=2*2*2*2*5*5*7 and 7 is not in a pair which gives 400(a perfect square of 20) on dividing 2800.   ANSWER:7
<result>C</result>
Which is the smallest number divides 2800 and gives a perfect square.