Question

pense nos divisores de 60 . quais desses numeros sai divisores de 45

Answer 1

$D (60): {1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60}\\\\ D(45): {1, 3, 5, 9, 15, 45} \\\\ D(60, 45): {1, 3, 5, 15}$