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Concept

# Integers

The set of integer numbers, represented by the symbol $\mathbb{Z},$ is formed by the number zero and all positive and negative numbers that do not contain any decimal parts.

$\mathbb{Z}=\{\ldots\text{-} 2, \text{-} 1, 0,1,2\ldots\}$

The set contains infinitely many numbers and can be described as shown above; the dots indicate that the set continues to increase or decrease by one step at a time indefinitely.