LCM( 1152, 1664 ) = 14976
The formula for finding LCM is
$$ \text{LCM} (a, b) = \frac{ a \cdot b }{ \text{GCD}(a,b)} $$In this example we have: a = 1152, b = 1664 and GCD(1152, 1664) = 128.
$$ \text{LCM} (1152, 1664) = \frac{ 1152 \cdot 1664 }{ \text{GCD}(1152,1664)} = \frac{ 1916928 }{ 128 } = 14976 $$