Question

How do you find the square root of 3969?

Answer 1

`=color(blue)(63`

Explanation:

The square root can be found out by prime factorising `3969` (express `3969` as a product of its prime factors)

`sqrt(3969)=sqrt(3*3*3*3* 7*7`

`=sqrt(3^2 *3 ^2 *7^2`

`=3*3*7`

`=color(blue)(63`