a)84 = 22 × 3 × 7
112 = 24 × 7;
cmmmc (84; 112) = 24 × 3 × 7 =336
cmmdc (84; 112) = 22 × 7 = 28;
b)162 = 2 × 34
72 = 23 × 32
cmmmc (162; 72) = 23 × 34 = 648
cmmdc (162; 72) = 2 × 32 = 18
Răspuns:
84=2 la 2 x3 x7
112=2 la 4x7
Cmmmc=2 la4 x3 x7=336
cmmdc=2 la2 x7=4x7=28
162=2x3 la4
72=3 la2x2 la3
cmmmc=3 la4x2 la3=648
cmmdc=2x3 la2=18
