9=3^2. 18=2.3^2. 36=2^2.3^2
UCLN(9,18,36)= 3^2=9
=> UC(9,18,36)={1,3,9}
BCNN( 9,18,36)=3^2..2^2=36
=> BC(9,18,36)={0,36,72,108,144,...}
ƯCLN(9,18,36)
9=32
18=32.2
36=32.22
ƯCLN(9,18,36)=32.2=18
ƯC(9,18,36)=Ư(18)=1;3;9
BCNN(9,18,36)
9=32
18=32.2
36=32.22
BCNN(9,18,36)=32.22=36
BC(9,18,36)=B(36)= 0;36;72;108;144;...
k mk nhé