a) 272=[tex] 2^{4} [/tex]*17
816=[tex] 2^{4} [/tex]*3*17
488= [tex] 2^{3} [/tex]*61
c.m.m.d.c= [tex] 2^{3} [/tex] = 8
b) 156= [tex] 2^{2} [/tex]*3*13
780= [tex] 2^{2} [/tex]*3*5*13
132= [tex] 2^{2} [/tex]*3*11
c.m.m.d.c= [tex] 2^{2} [/tex]*3=12
c) 108=[tex] 2^{2} * 3^{3} [/tex]
972=[tex] 2^{2} * 3^{5} [/tex]
1152=[tex] 2^{7} * 3^{2} [/tex]
c.m.m.d.c=[tex] 2^{2} * 3^{2} [/tex]=4*9=36
d) 810 = [tex] 3^{4} *2*5[/tex]
916 = [tex] 2^{2} [/tex]*229
101 = nr prim
c.m.m.d.c= 1
e) 441=[tex] 3^{2} * 7^{2} [/tex]
961=[tex] 31^{2} [/tex]
1296 =[tex] 2^{4} * 3^{4} [/tex]
c.m.m.d.c=1
