## What is the fastest way to find the LCM?

How to find the least common multiple-Easy Shortcut –

## What is the formula for the LCM?

lcm(a, b) = a × b / gcd(a, b). To use this formula we can compute a gcd with the calculator method we saw in the assignment Greatest Common Divisors and then do the multiplication and division. For example, once we see that gcd(40, 45) = 5, we get lcm(40, 45) = 40 × 45 / 5 = 360.

## What is the LCM of 4 and 10?

20

## What is the LCM of 8 and 12?

Least common multiple (LCM) of 8 and 12 is 24.

## What is the shortcut to find the LCM of 3 numbers?

Finding the LCM GCF of three numbers-Easy Shortcut –

## What is the LCM of 4 and 6?

12