MathDB

decimal representations

Source: bmo 1984

April 23, 2007

EulerfunctionLaTeXmodular arithmeticnumber theorytotient functionnumber theory proposed

Problem Statement

Show that for any positive integer

m

, there exists a positive integer

n

so that in the decimal representations of the numbers

5^{m}

and

5^{n}

, the representation of

5^{n}

ends in the representation of

5^{m}