## Basic College Mathematics (9th Edition)

The LCM is $120$. The number $240$ is a multiple of $120$ and cannot be the LCM of $8, 3, 5, 4, 10$.
$3 = 3$ $5 = 5$ $4 = 2 \cdot 2$ $8 = 2 \cdot 2 \cdot 2$ $10 = 2 \cdot 5$ LCM $= 2 \cdot 2 \cdot 2 \cdot 3 \cdot 5 = 120$.