Respuesta :

12,24,36,48,60,72,84,96,108,120,132,144
12 (12•1)
24 (12•2)
36 (12•3)
48 (12•4)
60 (12•5)
72 (12•6)
84 (12•7)
96 (12•8)
108 (12•9)
120 (12•10)
132 (12•11)
144 (12•12)