MathDB
7 numbers with product perfect cube 2016 May Olympiad L1 p1

Source:

August 20, 2021
number theoryperfect cubes

Problem Statement

Seven different positive integers are written on a sheet of paper. The result of the multiplication of the seven numbers is the cube of a whole number. If the largest of the numbers written on the sheet is NN, determine the smallest possible value of NN. Show an example for that value of NN and explain why NN cannot be smaller.