what exactly are integers?

Check this site.

http://www.mathgoodies.com/lessons/vol5/intro_integers.html

okay, I think I get it, thanks

Integers are a set of numbers that include positive numbers, negative numbers, and zero. They are whole numbers without any fractional or decimal parts. In mathematical notation, integers are often denoted by the letter "Z". The set of integers includes numbers like -3, -2, -1, 0, 1, 2, 3, and so on.

To better understand integers, you can think of them as markers on a number line. 0 is the midpoint of the number line, positive integers are located to the right of 0, and negative integers are located to the left of 0. As you move further away from 0 in either direction, the magnitude of the integers increases.

You can perform various operations with integers, such as addition, subtraction, multiplication, and division. Integers have some interesting properties, like closure under addition and subtraction, which means that when you add or subtract two integers, the result is always an integer.

To learn more about integers or perform calculations involving integers, you can refer to mathematics textbooks, online educational resources, or use a scientific calculator or a programming language that supports integer operations.