Răspuns :
27:3=9 rest 0
9:3=3 rest 0
10:3=3 rest 1
12:3= 4 rest 0
13:3=4 rest 1
3:3=1 rest 0
7:3= 2 rest 1
deci numerele sunt ; 27,9,12,3
9:3=3 rest 0
10:3=3 rest 1
12:3= 4 rest 0
13:3=4 rest 1
3:3=1 rest 0
7:3= 2 rest 1
deci numerele sunt ; 27,9,12,3