*This article aims to show you the simplest and easiest way to write the **integer number symbol in LaTeX**.*

As is common with the integer numbers symbol in logic and computer science, set theory has many applications in these fields. Today we will talk about its notation and how to write it in LaTeX.

**Mathematical Symbols for Numbers**

Mathematics, as we already know, deals with numbers and at some point some figure out symbols and notations to differentiate each type -integers, naturals, rational, complex- this classification is what we call the set of numbers.

Sets of numbers.

Each one of them has some characteristics, and they can be shared across different numbers sets.

**Integer Numbers: natural numbers, zero and negative numbers**

For this occasion we focus on the integer numbers, denoted by a “**Z**” written using the blackboard bold font. This number set can be divided into three more number sets, the natural numbers set, the zero and the negative natural numbers set.

The integers are colloquially defined as the numbers that you can write them without a fractional component, they are also called the “counting numbers”.

**Z** is a subset of **Q** (rational numbers), which in turn is a subset of **R** (real numbers).

**Integer Number in LaTeX**

To write this symbol or sign in LaTeX, we need to load either the amssymb or amsfonts package, either one works. Once loaded we call the command \**mathbb**{}, this command takes one value as argument.

This command writes the argument in blackboard bold font, for our particular case, it will be a Z, thus the final command would look like \**mathbb**{Z}. For example

```
\documentclass{article}
\usepackage{amssymb}
\usepackage{amsfonts}
%either one is valid
\begin{document}
Integers numbers: $\mathbb{Z}$
\end{document}
```

Now we can also use the same command for others sets of numbers, such as

```
\documentclass{article}
\usepackage{amssymb}
\usepackage{amsfonts}
%either one is valid
\begin{document}
Integer positive numbers: $\mathbb{Z}^{+}$ %to add a superscript
Integer negative numbers: $\mathbb{Z}^{-}$ %negative superscript
Natural numbers: $\mathbb{N}$
Rational numbers: $\mathbb{Q}$
Random Letter: $\mathbb{Y}$ %any letter you may like
\end{document}
```

As you can see, you can use \**mathbb**{N} or \**mathbb**{Q} or even \**mathbb**{Y}, it accepts any letter. But please be careful, it is case sensitive so in order to generate the desired output, the letter must be capital.

This mathematical notation has been used for quite a long time, and now you know how to write it in your LaTeX documents. There could be more notations, but you must look at the answers alone (psss… google is your friend), who knows maybe you will have your own set of numbers in the future with your favorite letter.

I hope you find this tutorial helpful and as always keep writing in LaTeX.

*All images were created in LaTeX by the author*

**Further Reading**

**LaTex Tutorial** **on Symbols**

- How To Create A Cross Product Symbol In LaTeX
- How to create a hat symbol in LaTeX?
- How to create a prime symbol in LaTeX?
- How to create an absolute value symbol in LaTeX?
- How to create an approximate symbol in LaTeX?
- How to create an intersection symbol in LaTeX?
- How to create the empty set symbol in LaTeX?
- How to write a degree symbol in LaTeX?
- How to write a dot product in LaTeX?
- How to Write a Greater Than Symbol in LaTeX?
- How to write a norm symbol in LaTeX?
- How to write A Plus-Minus Symbol in LaTeX
- How to write a proportional to symbol in LaTeX?
- How to write a real number symbol in LaTeX?
- How to write a tilde symbol in LaTeX?
- How to write a union symbol in LaTeX?
- How to write a vector in LaTeX?
- How to write an infinity symbol in LaTeX?
- How to write bold text in LaTeX?
- How To Write Dots Symbols In LaTeX?
- How to write the arrow symbols in LaTeX
- How to write the Degree celsius symbol in LaTeX?
- How to write the equal or not equal symbol in LaTeX?
- How to write the Euro symbol in LaTeX?
- How to write the floor symbol in LaTeX?
- How to write the gradient operator symbol in LaTeX
- How To Write The Greater Than Or Equal To Symbol In LaTeX?
- How to write the less than symbol in LaTeX?
- How to write the Natural numbers symbol in LaTeX?
- How to write the parallel symbol in LaTeX?
- How to write the percent symbol in LaTeX?
- How to write the square root symbol in LaTeX?
- How To Write The Symbol For A Subset In LaTeX?
- How to write the symbol for therefore in LaTeX?
- How to write with the mathbb in LaTeX?