Integer
From specialfunctionswiki
The integers, denoted by $\mathbb{Z}$, is the set $\mathbb{Z}=\{\ldots,-3,-2,-1,0,1,2,3,\ldots\}$.
The integers, denoted by $\mathbb{Z}$, is the set $\mathbb{Z}=\{\ldots,-3,-2,-1,0,1,2,3,\ldots\}$.