Set of Integers

Set of Integers

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”.