Question 13
The diagram below shows six distinct positive integers in a ring and the sum of any two neighboring numbers is a perfect square.
The below diagram is to be filled with six different positive integers such that it has the same property. If $X\le20$, find all possible values of $X$.
The below diagram is to be filled with six different positive integers such that it has the same property. If $X\le20$, find all possible values of $X$.