Least Common Multiple  of 12 and 24 is 24

How to find the Least Common Multiple of 12 and 24?

On this page below, we'll use the Prime Factorisation, and the List of Multiples method to find out the LCM of 12 and 24.

Follow the steps below, and let's calculate the LCM of 12 and 24.


Method 1 - Prime factorization

Step 1: Create a list of all the prime factors of the numbers 12 and 24:

Prime factors of 12

The prime factors of 12 are 2, 2 and 3. Prime factorization of 12 in exponential form is:

12 = 22x31

Prime factors of 24

The prime factors of 24 are 2, 2, 2 and 3. Prime factorization of 24 in exponential form is:

24 = 23x31


Step 2: Identify the highest power of each prime number from the above boxes:

23, 31


Step 3: Multiply these values together:

23x31=24


Step 4: The result:

As seen on the calculation above, we have now obtained the LCM of 12 and 24.

The Least Common Multiple of 12 and 24 is 24.


Method 2 - List of Multiples

Find and list multiples of each number until the first common multiple is found. This is the lowest common multiple.


Multiples of 12:

12, 24, 36, 48, 60

Multiples of 24:

24, 48, 72, 96


Therefore,

LCM(12, 24) = 24