Lowest Common Multiple/Examples/42 and 49

Example of Lowest Common Multiple of Integers
The lowest common multiple of $42$ and $49$ is:
 * $\lcm \set {42, 49} = 294$

Proof
We find the greatest common divisor of $42$ and $49$ using the Euclidean Algorithm:

Thus $\gcd \set {42, 49} = 7$.

Then: