Respuesta :
multiples of 3: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57...etc
multiples of 12: 12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144...etc
multiples of 12: 12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144...etc