# Giuga number

> composite number n such that p divides n/p − 1 for every prime divisor p of n

**Wikidata**: [Q1418543](https://www.wikidata.org/wiki/Q1418543)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Giuga_number)  
**Source**: https://4ort.xyz/entity/giuga-number


## References

1. Freebase Data Dumps. 2013