Salut!
a)mai intai descompunem numerele in factori primi
300=2^2 x 3 x 5^2
216=2^3 x 3^3
cmmdc (300; 216) = 2^2 × 3=12
b)45 = 3^2 × 5
72 = 2^3 × 3^2
cmmdc (45; 72) = 3^2=9
c) 112 = 2^4 × 7
252 = 2^2 × 3^2 × 7
cmmdc (112; 252) = 2^2 × 7=28
d) 90 = 2 × 3^2 × 5
300 = 2^2 × 3 × 5^2
cmmdc (90; 300) = 2 × 3 × 5=30
e) 1.890 = 2 × 3^3 × 5 × 7
2.268 = 2^2 × 3^4 × 7
cmmdc (1.890; 2.268) = 2 × 33 × 7=462
Sper ca te-am ajutat!
