Two topics in number theory: the greatest k-free number that divides n and formulas for composite and prime numbers. Gulf Journal of Mathematics, [S. l.], v. 14, n. 1, p. 33–44, 2023. DOI: 10.56947/gjom.v14i1.1089. Disponível em: https://gjom.org/index.php/gjom/article/view/1089. Acesso em: 25 aug. 2026.