Which of the following describes the set of all possible values of the positive integer k such that, for each positive odd integer n. the value of $$\frac{n}{k}$$ is midway between consecutive integers?
-
AAll positive integers greater than 2
-
BAll prime numbers
-
CAll positive even integers
-
DAll even prime numbers
-
EAll positive even multiples of 5
显示答案
正确答案: D