Is a whole number an integer

yes.

Step-by-step explanation:

Here is a definition

Integers. The integers are ..., - 4, - 3, - 2, - 1, 0, 1, 2, 3, 4, ... - - all the whole numbers and their opposites (the positive whole numbers, the negative whole numbers, and zero). Fractions and decimals are not integers ... For example, - 5 is an integer but not a whole number or a natural number.