An Elementary Proof for Fermat’s Last Theorem using Ramanujan-Nagell Equation. Indian Journal of Advanced Mathematics (IJAM), [S. l.], v. 4, n. 2, p. 10 to 15, 2025. DOI: 10.54105/ijam.B1180.04021024. Disponível em: https://www.journals.latticescipub.com/index.php/ijam/article/view/756.. Acesso em: 3 may. 2025.