Every negative number is an integer?

Answer 1

No, not every negative number is an integer.

For example, -11/2 is not an integer.

However, -1, -2, -3, and so on, are negative integers. Perhaps that is what you meant to ask.

The negative of every positive integer is a negative integer.

Answer 2

No, not every negative number is an integer. For example, -2.34 is not an integer.