On Some Properties of Digital Roots

Ilhan M. Izmirli

Department of Statistics, George Mason University, Fairfax, USA.

DOI: 10.4236/apm.2014.46039                

Abstract

Digital roots of numbers have several interesting properties, most of which are well-known. In this paper, our goal is to prove some lesser known results concerning the digital roots of powers of numbers in an arithmetic progression. We will also state some theorems concerning the digital roots of Fermat numbers and star numbers. We will conclude our paper by an interesting application.

Keywords

Digital Roots, Additive Persistence, Perfect Numbers, Mersenne Primes, Fermat Numbers, Star Numbers

Conflicts of Interest

The authors declare no conflicts of interest.

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