Integers of three colors
Source: 44th International Tournament of Towns, Junior O-Level P4, Fall 2022
February 16, 2023
number theorycombinatoricsTournament of Towns
Problem Statement
Is it possible to colour all integers greater than in three colours (each integer in one colour, all three colours must be used) so that the colour of the product of any two differently coloured numbers is different from the colour of each of the factors?