Only One Pair of Distinct Integers Satisfy The Equation n^m = m^n

A beautiful analytic proof of a number theoretic result

For today’s interesting problem, we are looking to find all positive integer pairs n and m which satisfy the equation above, when n and m are distinct. If we play around with small n and m we can quickly see that 2⁴ = 16 = 4² , so the pair 2 and 4 are certainly…