The least common multiple of $b$ and $40$ is $120$. Accordingly, how many different positive integers $b$ are there? A) 6 B) 8 C) 10 D) 12 E) 14
The least common multiple of $b$ and $40$ is $120$.
Accordingly, how many different positive integers $b$ are there?
A) 6\\
B) 8\\
C) 10\\
D) 12\\
E) 14