Question

find the square roots of the following number by the method of prime factorisation 729

Answer 1

here is ur ans....square root is3×3×3==27

Answer 2

After factorising 729 you will get:
729 = 3×3×3×3×3×3
you will see the no. 3 is in pairs.
since we need to find square root. So take out 3 from each pair.
so square root of 729 = 3×3×3
= 27
So 27 is the square root of 729.

Hope it helps you.