Least Common Multiple  of 34 and 38 is 646

How to find the Least Common Multiple of 34 and 38?

On this page below, we'll use the Prime Factorisation, and the List of Multiples method to find out the LCM of 34 and 38.

Follow the steps below, and let's calculate the LCM of 34 and 38.


Method 1 - Prime factorization

Step 1: Create a list of all the prime factors of the numbers 34 and 38:

Prime factors of 34

The prime factors of 34 are 2 and 17. Prime factorization of 34 in exponential form is:

34 = 21x171

Prime factors of 38

The prime factors of 38 are 2 and 19. Prime factorization of 38 in exponential form is:

38 = 21x191


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

21, 171, 191


Step 3: Multiply these values together:

21x171x191=646


Step 4: The result:

As seen on the calculation above, we have now obtained the LCM of 34 and 38.

The Least Common Multiple of 34 and 38 is 646.


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 34:

34, 68, 102, 136, 170, 204, 238, 272, 306, 340, 374, 408, 442, 476, 510, 544, 578, 612, 646, 680, 714, 748

Multiples of 38:

38, 76, 114, 152, 190, 228, 266, 304, 342, 380, 418, 456, 494, 532, 570, 608, 646, 684, 722, 760


Therefore,

LCM(34, 38) = 646