Find the least number which multiplied with 74088 will make it a perfect square?

74088 = 2 x 2 x 2 x 3 x 3 x 3 x 7 x 7 x 7
= (2 x 2) x (3 x 3) x (7 x 7) x ( 2 x 3 x 7)
∴ Least number which should be multiplied to 74088 to make it a perfect suqare = 2 x 3 x 7 = 42