MathDB
121 numbers

Source: tuymaada 2005

July 30, 2005
combinatorics unsolvedcombinatorics

Problem Statement

The positive integers 1,2,...,1211,2,...,121 are arranged in the squares of a 11×1111 \times 11 table. Dima found the product of numbers in each row and Sasha found the product of the numbers in each column. Could they get the same set of 1111 numbers?
Proposed by S. Berlov