# Barban–Davenport–Halberstam theorem
**Wikidata**: [Q15813392](https://www.wikidata.org/wiki/Q15813392)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Barban–Davenport–Halberstam_theorem)  
**Source**: https://4ort.xyz/entity/barban-davenport-halberstam-theorem