Question Number 64202 by Prithwish sen last updated on 15/Jul/19
$$\mathrm{Prove}\:\mathrm{385}^{\mathrm{1980}} +\mathrm{18}^{\mathrm{1980}} \:\mathrm{is}\:\mathrm{not}\:\mathrm{a}\:\mathrm{square}.\: \\ $$
Prove-385-1980-18-1980-is-not-a-square-