[tex]a)36=2^{2} *3^{2} \\60=2^{2}* 3*5\\c.m.m.d.c.=12\\b)57=3*19\\72=3^{2}* 2^{3} \\c.m.m.d.c.=3\\c)105=3*5*7\\70=2*5*7\\c.m.m.d.c=35\\d)120=2^{3} * 3*5\\77=7*11\\c.m.m.d.c=multimea_ avida \\e)50=2*5^{2}\\ 100=2^{2}*5^{2} \\c.m.m.d.c.=50\\f)33=3*11\\99=3^{2}*11\\ c.m.m.d.c.=33\\g)45=3^{2} *5\\54=2*3^{3} \\63=3^{2} *7\\c.m.m.d.c.=9\\h)120=2^{3} * 3*5\\225=3^{2} *5^{2}\\ 90=2*3^{2} *5\\ c.m.m.d.c.=30\\i)69=3^{2} *23\\ 529=23^{2} \\60=2^{2} *3*5\\c.m.m.d.c.=multimea_avida[/tex]