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. 2-2-2-3-3 because these are all prime just do the prime factorization tree