If g and f are both odd prime numbers andg < f, then how many different positive integer factors does2gfhave?  Pick: A) 3 B) 4 C) 6 D) 8 E) 12
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)= 
<gadget id="calculator">(1+1)</gadget>
<output>2</output>
2 factors   Hence 2gf will have (1+1)(1+1)(1+1)= 8 factors   8 is the answer
<result>D</result>
If g and f are both odd prime numbers andg < f, then how many different positive integer factors does2gfhave?