Question

Which of the following shows the prime factorization of 72 using exponential notation?22.3223.322.6²8.9

Answer 1

To find the prime factorization of 72 let's do our factor tree:

As we can see, we have two times the number 3, and three times the number 2, which means that 72 can be written as

$72=2^3\cdot3^2^{}$

Final answer:

$72=2^3\cdot3^2$