If s and t are distinct positive integers, which of the following could NOT be the lowest common positive multiple of s and t?
A : st
B : s/t
C : t
D: 2
E: s+t
A : st
B : s/t
C : t
D: 2
E: s+t
There are multiple ways to do this, but here is an easy way: if you choose 1 and 2 as the two integers, then you will realize that the first three answers could give you the LCM, and accordingly the 4th one has to be the right answer.
maihuna wrote:If s and t are distinct positive integers, which of the following could NOT be the lowest common positive multiple of s and t?
A : st
B : s/t
C : t
D: 2
E: s+t
