MathDB
Problems
Contests
National and Regional Contests
Mexico Contests
Mexico National Olympiad
2003 Mexico National Olympiad
1
insert a zero
insert a zero
Source: Mexico 2003
March 2, 2007
Problem Statement
Find all positive integers with two or more digits such that if we insert a
0
0
0
between the units and tens digits we get a multiple of the original number.
Back to Problems
View on AoPS