Question

Tim UCLN(12,30)

Answer 1

Ta có:

12 = 3.2²

30 = 2.3.5

ƯCLN (12,30) = 2.3 = 6

Answer 2

Phân tích thừa số nguyên tố ta có:

\(12=2^2.3\)

\(30=2.3.5\)

\(\RightarrowƯCLN\left(12,30\right)=2.3=6\)