Răspuns:
a)
[tex]12 = {2}^{2} \times 3[/tex]
[tex]28 = {2}^{2} \times 4[/tex]
[tex]cmmdc = {2}^{2} = 4[/tex]
b)
[tex]10 = 2 \times 5[/tex]
[tex]14 = 2 \times 7[/tex]
[tex]cmmdc = 2[/tex]
c)
[tex]15 = 3 \times 5[/tex]
[tex]35 = 5 \times 7[/tex]
[tex]cmmdc = 5[/tex]
d)
[tex]42 = 2 \times 3 \times 7[/tex]
[tex]36 = {2}^{2} \times {3}^{2} [/tex]
[tex]cmmdc = 2 \times 3 = 6[/tex]
e)
[tex]16 = {2}^{4} [/tex]
[tex]36 = {2}^{2} \times {3}^{2} [/tex]
[tex]cmmdc = {2}^{2} = 4[/tex]
f)
[tex]100 = {2}^{2} \times {5}^{2} [/tex]
[tex]80 = {2}^{4} \times 5[/tex]
[tex]cmmdc = {2}^{2} \times 5 = 20[/tex]
g)
[tex]14 = 2 \times 7[/tex]
[tex]49 = {7}^{2} [/tex]
[tex]cmmdc = 7[/tex]
h)
[tex]42 = 2 \times 3 \times 7[/tex]
[tex]21 = 3 \times 7[/tex]
[tex]cmmdc = 3 \times 7 = 21[/tex]
i)
[tex]35 = 5 \times 7[/tex]
[tex]6 = 2 \times 3[/tex]
[tex]cmmdc = 1(numere \: prime \: intre \: ele)[/tex]
