MathDB

N4

Part of 2007 Balkan MO Shortlist

Problems(1)

Problem on Infinite Arithmetic Progressions

Source: Balkan MO ShortList 2007 N4

4/6/2020
Find all infinite arithmetic progressions formed with positive integers such that there exists a number NāˆˆNN \in \mathbb{N}, such that for any prime pp, p>Np > N, the pp-th term of the progression is also prime.