Question

Is the number a square number if its prime
factorisation is 2 x 2 x 3 x 3 x 3 x 5. If not,
by what number it should be multiplied to
in order to get a square number.
pls help me ​

Answer 1

Its not a perfect square. Since there are 3 and 5 left, we will multiply it by 3x5 which is 15.

Answer 2

no, it's not a sq. number.

multiplying it by (3×5) = 15 makes it a sq no.

thus, the no. will be 8100, the sq of 90