The set of positive and negative numbers whose absolute value is a whole number.
Symbol
- The set of integers is denoted by the letter \(\mathbb{Z}\).
- \(\mathbb{Z}\) = {…, –4, –3, –2, –1, 0, 1, 2, 3, 4, …}.
Educational note
The symbol \(\mathbb{Z}\) is the first letter of the German word zahl meaning “number”.