Write the composite number for each prime factorization. You may wish to use a calculator.
5) 22 x 3 x 52
6) 2x32x7
7) 33 x 5
8) 2 x 53

Only one of those is actually a prime factorization.  Demand better from your teacher.  Anyway, I think they're just asking us to take out the calculator and enter the multiplication into it.

5) 22 isn't prime, neither is 52.    3432

6) 32 isn't prime.   448

7) 33 isn't prime.   165

8)  Finally a real prime factorization.   106

yes

step-by-step explanation:

a is the right answer