2
Part of 1975 Bundeswettbewerb Mathematik
Problems(2)
in each polyhedron there exist two faces with the same number of edges
Source: ITAMO 1998 p2 - Bundeswettbewerb Mathematik 1975 R1 p2
1/25/2020
Prove that in each polyhedron there exist two faces with the same number of edges.
combinatorial geometrypolyhedron3D geometryedgegeometry
no prime in sequence 10001, 100010001, 1000100010001, ...
Source: 1975 German Federal - Bundeswettbewerb Mathematik - BWM - Round 2 p2
11/20/2022
Prove that no term of the sequence , , , is prime.
number theoryprime numbers