MathDB
numbers at vertices of triangle / tetrahedron, consecutive and gcd related

Source: 2022 May Olympiad L2 p4

September 4, 2022
geometrycombinatorics

Problem Statement

a) A positive integer is written at each vertex of a triangle. Then on each side of the triangle the greatest common divisor of its ends is written. It is possible that the numbers written on the sides be three consecutive integers, in some order? b) A positive integer is written at each vertex of a tetrahedron. Then, on each edge of the tetrahedron is written the greatest common divisor of its ends . It is possible that the numbers written in the edges are six consecutive integers, in some order?