In how many ways can the integer 15 be expressed as a product of two different positive integers?  Choose the correct choice from the following.
A) 10 B) 8 C) 5 D) 4 E) 2
15=3*5   Since 15 is not a perfect square, no of ways=2   Answer 2
<result>E</result>
In how many ways can the integer 15 be expressed as a product of two different positive integers?