If x is a prime number, which of the following cannot be an integer?	Choose the correct choice from the following answers
A) x/2	B) 5x/3	C) 3x/7	D) 15x/6	E) x/6
x/2 can be an integer when x=2   5x/3 can be an integer when x=3   3x/7 can be an integer when x=7   15x/6==&gt; 5x/2 can be an integer when x=2   x/6 can't be an integer==&gt; when x=2, x/6=1/3 when x=3, x/6=1/2   ANSWx/6R:x/6
<result>E</result>
If x is a prime number, which of the following cannot be an integer?