Răspuns :
216/2=108
108/2=54
54/2=27
27/3=9
9/3=3
3/3=1
630/5=126 126/2=63 63/3=21 21/7=3 3/3=1
108/2=54
54/2=27
27/3=9
9/3=3
3/3=1
630/5=126 126/2=63 63/3=21 21/7=3 3/3=1