LCM( 8, 3 ) = 24
The formula for finding LCM is
$$ \text{LCM} (a, b) = \frac{ a \cdot b }{ \text{GCD}(a,b)} $$In this example we have: a = 8, b = 3 and GCD(8, 3) = 1.
$$ \text{LCM} (8, 3) = \frac{ 8 \cdot 3 }{ \text{GCD}(8,3)} = \frac{ 24 }{ 1 } = 24 $$