what is an integer
Integers are like whole numbers, but they also include negative numbers ... but still no fractions allowed!
So, integers can be negative {-1, -2,-3, -4, -5, }, positive {1, 2, 3, 4, 5, }, or zero {0}
We can put that all together like this:
Integers = { ..., -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, ... }
Whole NumbersWhole Numbers are simply the numbers 0, 1, 2, 3, 4, 5, (and so on)