How many different positive integers are factors of 324 ?
Choose the correct choice from the following options:
A) 9
B) 16
C) 25
D) 36
E) 49
18×18=6^2 × 3^2   So total factors = (5+1)(5+1) = 36   Answer: 36
<result>D</result>
How many different positive integers are factors of 324 ?