latex natural zero number symbol code example
Example 1: natural numbers latex
\usepackage{amssymb}
$\mathbb{N}$Example 2: integer number latex
\usepackage{amssymb}
$\mathbb{Z}$\usepackage{amssymb}
$\mathbb{N}$\usepackage{amssymb}
$\mathbb{Z}$