Explicație pas cu pas:
20:6=3 rest 2
8:3=2 rest 2
7:4=1 rest 3
11:5=2 rest 1
20:9=2 rest 2
12:5=2 rest 2
16:7=2 rest 2
36:7=5 rest 1
81:7=11 rest 4
45:6=7 rest 3
11:3=3 rest 2
14:6=2 rest 2
54:4=13 rest 2
23:7=3 rest 2
43:5=8 rest 3
21:4=5 rest 1
34:6=5 rest 4
76:10=7 rest 6
90:8=11 rest 2
23:4=5 rest 3