# Modular Arithmetic | ![img \|150](https://upload.wikimedia.org/wikipedia/commons/thumb/a/a4/Clock_group.svg/320px-Clock_group.svg.png) | In mathematics, **Modular Arithmetic** is a system of arithmetic for integers, where numbers "wrap around" when reaching a certain value, called the modulus. The modern approach to modular arithmetic was developed by Carl Friedrich Gauss in his book Disquisitiones Arithmeticae, published in 1801. | |-|-| | | wikipedia:: [Modular arithmetic](https://en.wikipedia.org/wiki/Modular_arithmetic) | Modulus or modulo operator in [[Programming]]