MathDB
f(n) is next positive integer whose all digits are divisible by n

Source: 2006 VMEO III Shortlist SL N4 Vietnamese Mathematics e - Olympiad https://artofproblemsolving.com/community/c2461015_vmeo__viet

October 28, 2021
divisibleDigitsnumber theorydivides

Problem Statement

Given the positive integer nn, find the integer f(n)f(n) so that f(n)f(n) is the next positive integer that is always a number whose all digits are divisible by nn.
Back to ProblemsView on AoPS