Bundeswettbewerb Mathematik 1977 Problem 1.1
Source: Bundeswettbewerb Mathematik 1977 Round 1
October 10, 2022
Integersalgebranumber theorySumdivisible
Problem Statement
Among distinct positive integers, there are equally many even and odd ones. The sum of the numbers is less than Show that at least one of the numbers is divisible by