Question

find the smaller whole number by which the number 1620 should be divided so as to get a perfect square number​

Answer 1

Answer:

5

Step-by-step explanation:

Factorization of 1620:

2×2×3×3×3×3×5.

∴ If you divide the number by 5, 2×2×3×3×3×3 will be left.

2×2×3×3×3×3 = 324.

$\sqrt{324}$ = 18.