Question

Find the least number by which 180 should be multiplied to make it a perfect square. Pls help with this question!

Answer 1

Root of 180 by prime factorisation = 2×2×3×3×5

Since, 5 is left unpaired, 180 must be multiplied by 5.

180×5= 900

Therefore, 900 = 2×2×3×3×5×5

= 2^2× 3^2× 5^2

=30^2

root of 905 = 30

Ans: root of 900 is 30

Hope this helps you .