Răspuns:
[tex]a) \: 2 = 2.4 = 2 {}^{2} . \: \: 6 = 2 \times 3. \: \: 8 = 2 {}^{3} = > \: c.m.m.m.c. \: \: = 2{}^{3} \times 3 = 8 \times 3 = 2 \\ [/tex]
B) 10=2×5,15 =3×5,30=2×3×5, 60= 2^2×3×5=>C.M.M.M.C. 2^2×3×5=60
C) 20= 2^2×5 , 25 = 5^2,45= 3^2×5 ,70 =2×5×7 => C.M.M.M.C =2^2×3^2×5×7=4×9×5×7=1260
D) 11=11,33,3×11,66=2×3×11,99=3^2×11=>C.M.M.M.C =2×3^2×11=2=198