MathDB
Integer divided by prime number

Source: Bangladesh National MO 2013

March 5, 2019
number theoryBdmo

Problem Statement

Higher Secondary P5
Let x>1x>1 be an integer such that for any two positive integers aa and bb, if xx divides abab then xx either divides aa or divides bb. Find with proof the number of positive integers that divide xx.
Back to ProblemsView on AoPS