Which of the following CANNOT be the least common multiple of two positive integers x and y	Options
A) xy	B) x	C) y	D) x + y	E) x - y^2
The least common multiple of two positive integers cannot be less than either of them. Therefore, since x - y^2 is less than x, it cannot be the LCM of a x and y.   Answer: x - y^2
<result>E</result>
Which of the following CANNOT be the least common multiple of two positive integers x and y