# reduced residue system

> set of φ(n) integers such that each integer is relatively prime to n and no two are congruent modulo n

**Wikidata**: [Q1246629](https://www.wikidata.org/wiki/Q1246629)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Reduced_residue_system)  
**Source**: https://4ort.xyz/entity/reduced-residue-system