Question

ƯCLN của 12;24;20 là gì?

Answer 1

Ta có: 

\(12=2^2\cdot 3\\24=2^3\cdot3\\20=2^2\cdot5\\\Rightarrow UCLN(12;24;20)=2^2=4\)

#\(Toru\)

Answer 2

Ta có:

\(12=2^2\cdot3\)

\(24=2^3\cdot3\)

\(20=2^2\cdot5\)

\(\RightarrowƯCLN\left(12,24,20\right)=2^2=4\)