Perkalian Bilangan Bulat Dengan Yang Dikalikan Dan Hasilnya Mempunyai Digit Yang Sama

Purwanto Purwanto

Abstract


In the literature, sometimes, some multiplications with the result has the same digit as one of its factors are presented. For instance, 5 142857 = 714285, with 142857 and 714285 have the same digits. In this paper, some ways to construct such multiplications are described. We will use some results in number theory.