MathDB

TOT 175 1988 Spring Train S1 m,n same digits m+n =999 . . . 9

Source:

May 20, 2020

number theoryDigits

Problem Statement

Is it possible to select two natural numbers

m

and

n

so that the number

n

results from a permutation of the digits of

m

, and

m+n =999 . . . 9