If g and f are both odd prime numbers andg < f, then how many different positive integer factors does2gfhave?
Choose the correct option.
A) 3
B) 4
C) 6
D) 8
E) 12

Rationale: g and f are both odd prime numbers - it means either g or f is not 2 and since prime numbers have only two factors - 1 and the number itself g and f each will have ( 1 + 1 ) = 2 factors hence 2 gf will have ( 1 + 1 ) ( 1 + 1 ) ( 1 + 1 ) = 8 factors d is the answer
Answer: D