Question

What is the prime factorization of 18?
2x3
2x9
2x3x3
2x3x9

Answer 1

Answer: It's 2 x 3 x 3

Why:

Answer 2

Answer: 2 × 3 × 3 or we can also write them as 2 × 32, where 2 and 3 both are prime numbers.