\(24=2^3.3\)
\(10=2.5\)
\(ƯCLN\left(24,10\right)=2\)
\(BCNN\left(24,10\right)=2^3.3.5=120\)
$\text{_____________________}$
\(300=2^2.3.5^2\)
\(280=2^3.5.7\)
\(ƯCLN\left(300,280\right)=2^2.5=20\)
\(BCNN\left(300,280\right)=2^3.3.5^2.7=4200\)
$\text{_____________________}$
\(30=2.3.5\)
\(90=2.3^2.5\)
\(ƯCLN\left(30,90\right)=2.3.5=30\)
\(BCNN\left(30,90\right)=2.3^2.5=90\)
$\text{_____________________}$
\(14=2.7\)
\(21=3.7\)
\(56=2^3.7\)
\(ƯCLN\left(14,21,56\right)=7\)
\(BCNN\left(14,21,56\right)=2^3.3.7=168\)
Ta có :
`24=2^3*3`
`10=2*5`
`->ƯCLN(24;10)=2`