Question

Aflati cel mai mic numar natural nenul care se imparte exact la 45 si la 65.

Answer 1

45=5×3^2
65=5×13
[45,65]=5×9×13=45×13=585

Answer 2

45=3^2*5
65=5*13
cmmmc =3^2*5*13 =9*5*13 =585
585:45=13
585:65 =9