What is the least common multiple of 28 and 51? (LCM of 28 and 51)?

What is the Least Common Multiple of 28 and 51?

The Least Common Multiple (LCM) of 28 and 51 is the smallest positive number that is a multiple of both 28 and 51.

Here we will show you two different ways to figure out the Least Common Multiple of 28 and 51.

Our favorite way is to find the prime factors of each number and then merge them together to get the answer.

The prime factor(s) of 28 are:
2 x 2 x 7

The prime factor(s) of 51 are:
3 x 17

Merging them together using the least amount of factors, you get:

2 x 2 x 3 x 7 x 17

Then you can multiply those numbers together to get the Least Common Multiple (LCM) of 28 and 51 as follows:

1428

To find the Least Common Multiple of 28 and 51, you can also make a list of multiples of 28 and a list of multiples of 51.

Multiples of 28 would be 28, 56, 84, 112 and so on.

Multiples of 51 would be 51, 102, 153, 204 and so on.

Now, compare the two lists to find the smallest number the two lists have in common, which is the Least Common Multiple of 28 and 51. You will once again see that the answer will be:

1428

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We used used the following sources to solve the problem on this page:

Prime Factorization of 28

Prime Factorization of 51

Multiples of 28

Multiples of 51