Find the square root of 18

To find the square root of 18 we will factorise it first

Prime factorizing the number 18 we can divide the entire number by 2 such as

By prime factorisation, we know:

18= 2 X 9

9= 3 X 3

Factorization of 18

So prime factorization of 18 is 2 x 3 x 3 which can be written as (2 ) X ( 3 x 3)

Pairing the numbers to get the perfect squares we get;

18 = (2) x (32)

Answer

Hence The square root of 18 is 3√2

Hence, √18 = 3√2

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