Tìm ƯC thông qua ƯCLN của 315 và 540.
A.\(UC\left( {315;\,\,540} \right) = \left\{ {1;\,\,3;\,\,5;\,\,15;\,\,45} \right\}.\)
B.\(UC\left( {315;\,\,540} \right) = \left\{ {1;\,\,3;\,\,5;\,\,9;\,\,15} \right\}.\)
C.\(UC\left( {315;\,\,540} \right) = \left\{ {1;\,\,3;\,\,5;\,\,9;\,\,15;\,\,45;\,\,60} \right\}.\)
D.\(UC\left( {315;\,\,540} \right) = \left\{ {1;\,\,3;\,\,5;\,\,9;\,\,15;\,\,45} \right\}.\)