How to find the Least Common Multiple of 8 and 13?
On this page below, we'll use the Prime Factorisation, and the List of Multiples method to find out the LCM of 8 and 13.
Follow the steps below, and let's calculate the LCM of 8 and 13.
Method 1 - Prime factorization
Step 1: Create a list of all the prime factors of the numbers 8 and 13:
Prime factors of 8
The prime factors of 8 are 2, 2 and 2. Prime factorization of 8 in exponential form is:
8 = 23
Prime factors of 13
The prime factors of 13 are 13. Prime factorization of 13 in exponential form is:
13 = 131
Step 2: Identify the highest power of each prime number from the above boxes:
23, 131
Step 3: Multiply these values together:
23x131=104
Step 4: The result:
As seen on the calculation above, we have now obtained the LCM of 8 and 13.
The Least Common Multiple of 8 and 13 is 104.
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 8:
8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120, 128
Multiples of 13:
13, 26, 39, 52, 65, 78, 91, 104, 117, 130, 143
Therefore,
LCM(8, 13) = 104