Question

Which shows all the prime factors for 72?

A.
8 • 9


B.
6 • 12


C.
2 • 2 • 2 • 3 • 3


D.
2 • 2 • 3 • 3 • 3

Answer 1

C.

Explanation:

Find the set of prime numbers that, when calculate together, give 72.

Prime numbers are number that can't be multiplied again.

Just like 2 and 3, there is no other number to multiply to get the number 2 and 3. For example: 4, multiply 2 x 2 = 4, 2 is the prime number.