# Mertens' first theorem

> Theorem that the sum of log(p)/p over primes up to n approximates log(n)

**Wikidata**: [Q118176576](https://www.wikidata.org/wiki/Q118176576)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Mertens'_first_theorem)  
**Source**: https://4ort.xyz/entity/mertens-first-theorem