Determine the prime factorization of each number | A. 30 | B. 33 | C. 52 | D. 72 | E. 65 | F. 76

Question

I have already done the factors for each question but I am just confused and what I should circle, it has no picture and it only wants me to circle one, I just need to know which one I need to circle

Answer 1

The prime factorization of any composite number is unique. Although 12 = 2 times 6, or 3 times 4, the PRIME FACTORIZATION is 2²•3.

 

As for 65, it's 5(13).  For 76, it's 2(38) = 4(19), and this means the prime factorization is 76 = 2²(19).

 

Obviously for each of these six problems there are multiple choices; only one will consist of all primes (some primes with exponents, of course).

 

No picture(s) required!