LCM of 38 and 24


The lcm of 38 and 24 is the smallest positive integer that divides the numbers 38 and 24 without a remainder. Spelled out, it is the least common multiple of 38 and 24. Here you can find the lcm of 38 and 24, along with a total of three methods for computing it. In addition, we have a calculator you should check out. Not only can it determine the lcm of 38 and 24, but also that of three or more integers including thirty-eight and twenty-four for example. Keep reading to learn everything about the lcm (38,24) and the terms related to it.

What is the LCM of 38 and 24

If you just want to know what is the least common multiple of 38 and 24, it is 456. Usually, this is written as

lcm(38,24) = 456

The lcm of 38 and 24 can be obtained like this:

  • The multiples of 38 are …, 418, 456, 494, ….
  • The multiples of 24 are …, 432, 456, 480, …
  • The common multiples of 38 and 24 are n x 456, intersecting the two sets above, $\hspace{3px}n \hspace{3px}\epsilon\hspace{3px}\mathbb{Z}$.
  • In the intersection multiples of 38 ∩ multiples of 24 the least positive element is 456.
  • Therefore, the least common multiple of 38 and 24 is 456.

Taking the above into account you also know how to find all the common multiples of 38 and 24, not just the smallest. In the next section we show you how to calculate the lcm of thirty-eight and twenty-four by means of two more methods.

How to find the LCM of 38 and 24

The least common multiple of 38 and 24 can be computed by using the greatest common factor aka gcf of 38 and 24. This is the easiest approach:

lcm (38,24) = $\frac{38 \times 24}{gcf(38,24)} = \frac{912}{2}$ = 456

Alternatively, the lcm of 38 and 24 can be found using the prime factorization of 38 and 24:

  • The prime factorization of 38 is: 2 x 19
  • The prime factorization of 24 is: 2 x 2 x 2 x 3
  • Eliminate the duplicate factors of the two lists, then multiply them once with the remaining factors of the lists to get lcm(38,38) = 456

In any case, the easiest way to compute the lcm of two numbers like 38 and 24 is by using our calculator below. Note that it can also compute the lcm of more than two numbers, separated by a comma. For example, enter 38,24. Push the button only to start over.

The lcm is...
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Use of LCM of 38 and 24

What is the least common multiple of 38 and 24 used for? Answer: It is helpful for adding and subtracting fractions like 1/38 and 1/24. Just multiply the dividends and divisors by 12 and 19, respectively, such that the divisors have the value of 456, the lcm of 38 and 24.

$\frac{1}{38} + \frac{1}{24} = \frac{12}{456} + \frac{19}{456} = \frac{31}{456}$. $\hspace{30px}\frac{1}{38} – \frac{1}{24} = \frac{12}{456} – \frac{19}{456} = \frac{-7}{456}$.

Properties of LCM of 38 and 24

The most important properties of the lcm(38,24) are:

  • Commutative property: lcm(38,24) = lcm(24,38)
  • Associative property: lcm(38,24,n) = lcm(lcm(24,38),n) $\hspace{10px}n\neq 0 \hspace{3px}\epsilon\hspace{3px}\mathbb{Z}$

The associativity is particularly useful to get the lcm of three or more numbers; our calculator makes use of it.

To sum up, the lcm of 38 and 24 is 456. In common notation: lcm (38,24) = 456.

If you have been searching for lcm 38 and 24 or lcm 38 24 then you have come to the correct page, too. The same is the true if you typed lcm for 38 and 24 in your favorite search engine.

Note that you can find the least common multiple of many integer pairs including thirty-eight / twenty-four by using the search form in the sidebar of this page.

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