Question
Find Least Common Multiple of 8 and 20 using LCM formula..
Answer
LCM( 8, 20 ) = 40
Explanation
The formula for finding LCM is
$$ \text{LCM} (a, b) = \frac{ a \cdot b }{ \text{GCD}(a,b)} $$In this example we have: a = 8, b = 20 and GCD(8, 20) = 4.
$$ \text{LCM} (8, 20) = \frac{ 8 \cdot 20 }{ \text{GCD}(8,20)} = \frac{ 160 }{ 4 } = 40 $$This page was created using
LCM Calculator