Question

The number of prime factors of 36 is ……………

A) 4 

B) 3 

C) 2 

D) 1

Answer 1

Correct option is (C) 2

\(\because\) Prime factorisation of 36 is

\(36=2\times2\times3\times3=2^2\times3^2\)

\(\therefore\) Prime factors of 36 are 2 and 3 only.

\(\therefore\) Number of prime factors of 36 is 2.

Answer 2

Correct option is C) 2