Question

Write 720 as a product of its prime factors

Answer 1

720 = 2^4 * 3² * 5
does this help 

Answer 2

Prime factors are natural numbers that has no divisors except 1 and itself as 2,3,5,7 and many many more
so, you need to use this numbers to do a prime factorization.
So, the prime factorization of 720 is 2^4 * 3^2 * 5
Hope this Helps :D