The least number by which 1470 must be divided to get a number which is a perfect square is?
5
6
15
30
45
1470 = 7 ×7 ×5 ×6. To get a perfect square, it must be divided by 5 ×6, i.e., 30.
The least number by which 125 must be divided to make it a perfect square is
Find the smallest number by which 7623 must be divided to get a perfect square.