24=2^3.3
84=2^2.3.7
180=2^2.3^2.5
ƯCLN của: 24,84,180=2^2.3=12
24 = 23.3
84 = 22 . 3. 7
180 = 22 .33 . 50
ƯCLN ( 24,84,180 ) = 2. 2 = 4
Ta có: 24 = 23 . 3
84 = 22 .3 .7
180 = 22 . 32 . 5
=> ƯCLN ( 24,84,180 ) = 22 . 3 = 12
24=23 . 3
84= 22. 3 .7
180= 22 . 32 . 5
UCLN ( 24;84;180) = 22 . 3= 12
Ta có 24 = 23 . 3; 84 = 22 . 3 . 7; 180 = 22 . 32 . 5.
Vậy ƯCLN (24, 84, 180) = 22 . 3 = 12.