Special case of Fermat’s Theorem. Gulf Journal of Mathematics, [S. l.], v. 13, n. 2, p. 12–18, 2022. DOI: 10.56947/gjom.v13i2.868. Disponível em: https://gjom.org/index.php/gjom/article/view/868. Acesso em: 25 aug. 2026.