LCM( 215, 364 ) = 78260
The formula for finding LCM is
$$ \text{LCM} (a, b) = \frac{ a \cdot b }{ \text{GCD}(a,b)} $$In this example we have: a = 215, b = 364 and GCD(215, 364) = 1.
$$ \text{LCM} (215, 364) = \frac{ 215 \cdot 364 }{ \text{GCD}(215,364)} = \frac{ 78260 }{ 1 } = 78260 $$