Question

What are the prime factors of 30? 1,3,5 3,5,7 2,5,15 2,3,5

Answer 1

2, 3 and 5

A prime number can only be divided by 1 and itself

The list shows factors of 30, however, the only prime factors are 2, 3 and 5

Answer 2

Prime factorization of 30:

30 = 2 × 3 × 5

Thus the prime factors are 2, 3 and 5