32 = 18ƯC(54;36) = Ư(ƯCLN(54;36))= Ư(18) = {1; 2; 3; 6; 9; 18}

Câu 3 (1.0điểm):

54= 2 . 3

3

0.25 đ

36= 2

2

. 3

2

ƯCLN(54;36)= 2 . 3

2

= 18

ƯC(54;36) = Ư(ƯCLN(54;36))= Ư(18) = {1; 2; 3; 6; 9; 18}