What is the prime factor of 39 using exponential notation?

Answer 1

39 is not divisible by 2, since it is odd. Looking at the next highest Prime number 3, we see that it is divisible, so we divide by three until it is no longer divisible by 3:

39/3 = 13

13 is also prime, thus 3*13 is the prime factorization.

Answer 2

3 x 13 = 39 No exponents are needed.

Answer 3

3*13 = 39

Answer 4

3 x 13 = 39