# What is the LCM Of 5,10 and 15?

The least common multiple of 5, 10, 15, and 20 is the smallest number that is the multiple of 5, 10, 15, and 20

## Answer: LCM of 5, 10, 15, and 20 is 60

Least Common Multiple (LCM) of x and y is the smallest number that divides x and y exactly.

**Explanation:**

Look at one of the methods that use the listing out the common multiples.

### LCM of 5, 10, 15, and 20 by Listing Method

In this method, we list the first few multiples of 5, 10, 15, and 20 and identify the common multiples.

The least among the common multiples is the LCM of 5, 10, 15, and 20

Here is the easiest way to find the LCM of 5, 10, 15, and 20, the Common Division Method

### LCM of 5, 10, 15, and 20 by Common Division Method

Follow the steps mentioned below to find the LCM of 5, 10, 15, and 20 by the common division method.

- Step 1: Write the numbers 5, 10, 15, and 20 horizontally by separating them with a comma.
- Step 2: Choose the smallest prime number that divides at least any one of them.
- Step 3: Write the quotient in the next row just below the numbers. If any of the numbers are not divided, we will bring it down directly.
- Step 4: We will stop it when we don't have a prime number to divide the given numbers.
- Step 5: Least common multiple of 5, 10, 15, and 20 will be the product of primes by which we have divided.

So, by common division method, we have LCM of 5, 10, 15, and 20 = 2 × 2 × 3 × 5 = 60

Irrespective of the method, the solution to our question LCM of 5, 10, 15, and 20 is the same.