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MathNet 2012 Question 41

Math Olympiad Vault · MathNet 2012

Question 41

An integer number $n \gt 2$ is called k-beta if two different numbers can be chosen from the set $\{1, 2, 3, \dots, n\}$ so that their product is equal to $k$ times the sum of the other $n-2$ numbers. For each positive integer $k$, find all the k-beta numbers.