We know that an integer number is the difference of two squares if and only if it is not congruent to 2 mod 4. As a generalization, do we have a similar statement for integers of the form $m^k-n^k$, where $k\geq 2$ is a fixed integer?
2026-04-13 06:36:09.1776062169
Integers of the form $m^k-n^k$
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