If s and t are both odd prime numbers ands < t, then how many different positive integer factors does2sthave?
Select
A) 3 B) 4 C) 6 D) 8 E) 12
s and t are both odd prime numbers- It means either s or t is not 2   and since prime numbers have only two factors - 1 and the number itself   s and t each will have (1+1)= 
<gadget id="calculator">(1+1)</gadget>
<output>2</output>
2 factors   Hence 2st will have (1+1)(1+1)(1+1)= 8 factors   8 is the answer
<result>D</result>
If s and t are both odd prime numbers ands < t, then how many different positive integer factors does2sthave?