Răspuns :
[tex]12 |2 \\ 6 | 2 \\ 3 |3 \\ 1 \\ \\ 56 |2 \\ 28 |2 \\ 14 |2 \\ 7|7 \\ 1| \\ \\ 12 = 2 {}^{2} \times 3 \\ 56 = 2 {}^{3} \times 7[/tex]
cmmdc=4
[tex]12 |2 \\ 6 | 2 \\ 3 |3 \\ 1 \\ \\ 56 |2 \\ 28 |2 \\ 14 |2 \\ 7|7 \\ 1| \\ \\ 12 = 2 {}^{2} \times 3 \\ 56 = 2 {}^{3} \times 7[/tex]
cmmdc=4