What is an integer that is not a whole number?

An integer is a number with no decimal or fractional part. Integers include natural numbers, negatives of natural numbers and zero.

Answer: A negative integer is an integer that is not a whole number.

An integer is negative if it is less than zero.

Explanation:

Any whole number is a non-negative integer, that is, either a positive integer or zero.

So, in order to find the integers that are NOT whole numbers, we need to find integers that are NOT non-negative.

An integer is negative if it is less than zero. Example: -1, -2, -3 . . .

Hence, all negative integers are not whole numbers. 

Thus, a negative integer is an integer that is not a whole number.