LCM( 83, 291 ) = 24153
The formula for finding LCM is
$$ \text{LCM} (a, b) = \frac{ a \cdot b }{ \text{GCD}(a,b)} $$In this example we have: a = 83, b = 291 and GCD(83, 291) = 1.
$$ \text{LCM} (83, 291) = \frac{ 83 \cdot 291 }{ \text{GCD}(83,291)} = \frac{ 24153 }{ 1 } = 24153 $$