\(648=2^3\cdot3^4\\ 540=2^2\cdot3^3\cdot5\\ \text{ƯCLN}\left(648,540\right)=2^2\cdot3^3=108\\ \text{ƯC}\left(648,540\right)=Ư\left(108\right)=\left\{1;2;3;4;6;9;12;18;27;36;54;108\right\}\)
Vậy \(\text{ƯC}\left(648,540\right)=\left\{1;2;3;4;6;9;12;18;27;36;54;108\right\}\)
Giải:
Tìm ƯCLN (648,540)
\(648=2^3.3^4\)
\(540=2^2.3^3.5\)
\(\text{ ƯCLN (648,540)}=2^3.3^3\)=\(108\)
\(\text{ƯC(648,540)}=\left\{1;2;3;4;...\right\}\)