For a positive integer n > 2, consider the n-1 fractions 2/1; 3/2; ...; n/(n-1).

The product of these fractions equals n, but if you reciprocate (i.e. turn upside down) some of the fractions, the product will change.

How can you make the product equal 1?
Find all values of n for which this is possible.

(In reply to Different solution by Jer)

Edited on December 2, 2015, 11:00 am

Posted by Charlie on 2015-12-02 10:52:59