Article
Summary:
The article presents analogical expressions for the same powers in the numeral systems of different bases. The factorization formula for $z^{z+1}-1$ and $z^{z+1}+1$ is also derived.
References:
                        
[1] Mikulčák, J.: Přehled učiva matematiky základní školy.  SPN, Praha, 1993.
[2] Odvárko, O.: Matematika pro gymnázia. Posloupnosti a řady.  Prometheus, Praha, 1995.