LCM( 53, 54 ) = 2862
The formula for finding LCM is
$$ \text{LCM} (a, b) = \frac{ a \cdot b }{ \text{GCD}(a,b)} $$In this example we have: a = 53, b = 54 and GCD(53, 54) = 1.
$$ \text{LCM} (53, 54) = \frac{ 53 \cdot 54 }{ \text{GCD}(53,54)} = \frac{ 2862 }{ 1 } = 2862 $$