If p and q are prime numbers, how many divisors does the product p^2 * q^5 have?
Select.
A) 8 B) 10 C) 12 D) 15 E) 18
when a number N=a^x*b^y, where a and b are prime numbers, and x, y are positive integers, the number of divisors of N=(x+1)(y+1)   Therefore, the answer is E. 3*6=18
<result>E</result>
If p and q are prime numbers, how many divisors does the product p^2 * q^5 have?