Question

I really don't get these two questions ould you please help me

Answer 1

Explanation:

1) 75 = 5 * 15 = 5 * 3 * 5

Factors of 75 = 3 , 5

2) 42 = 3 * 14 = 3 * 2 * 7

Factors of 42 = 2 , 3 , 7