LCM( 2, 2 ) = 2
The formula for finding LCM is
$$ \text{LCM} (a, b) = \frac{ a \cdot b }{ \text{GCD}(a,b)} $$In this example we have: a = 2, b = 2 and GCD(2, 2) = 2.
$$ \text{LCM} (2, 2) = \frac{ 2 \cdot 2 }{ \text{GCD}(2,2)} = \frac{ 4 }{ 2 } = 2 $$