if ( 6 ) ( x ^ 2 ) has 3 different prime factors , at most how many different prime factors does x have ?  Choose one.
A) 1	B) 2	C) 3	D) 4	E) 5

Rationale: x can have at most 3 prime factors , namely the prime factors 2 and 3 , plus one other . if x had more than this number of prime factors , then ( 6 ) ( x ^ 2 ) would have more than 3 prime factors . the answer is c .
Answer: C