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LCM of 438, 824, 798, 686

Created By : Jatin Gogia
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023


Find the LCM of 438, 824, 798, 686 with the LCM of Two or More Numbers Calculator. Here we are teaching you two different methods through which you can calculate the LCM of 438, 824, 798, 686. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 438,824,798,686

Given numbers are 438,824,798,686

The least common multiple of numbers can be find using the prime factorization method or LCM formula.

The LCM of 438,824,798,686 is 1176031752.

Find LCM of 438,824,798,686 with Prime Factorization


2 438, 824, 798, 686
3 219, 412, 399, 343
7 73, 412, 133, 343
73, 412, 19, 49

Multiply the prime numbers at the bottom and the left side.

2 x 3 x 7 x 73 x 412 x 19 x 49 = 1176031752

Therefore, the lowest common multiple of 438,824,798,686 is 1176031752.

LCM Formula to Find Lowest Common Multiple of 438,824,798,686

LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}

Firstly, we have to find the product of all the numbers.

438 x 824 x 798 x 686 = 197573334336

Then, let us find the GCF of these five numbers. To do so, we have to list down the factors for each number and choose the highest factor that is in all of the lists.

438 : 1, 2, 3, 6, 73, 146, 219, 438

824 : 1, 2, 4, 8, 103, 206, 412, 824

798 : 1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 114, 133, 266, 399, 798

686 : 1, 2, 7, 14, 49, 98, 343, 686

2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 438,824,798,686, is 2.

Now, the common factors can be found like this.

438:2x 3x 73

824:2x 2x 2x 103

798:2x 3x 7x 19

686:2x 7x 7x 7

From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.

2x 2x 3x 7 = 84

Therefore, the value for common factors is 84.

Now that we have all the elements of the formula, we can plug them in to calculate the LCM.

LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}

LCM = 197573334336/(2x84)

LCM = 197573334336/168

LCM = 1176031752

Thus, we can understand that the LCM of 438,824,798,686 is 1176031752.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 438, 824, 798, 686

1. What is the LCM of 438, 824, 798, 686?

Answer: LCM of 438, 824, 798, 686 is 1176031752.

2. How to calculate the LCM of 438, 824, 798, 686?

The LCM can be found using two methods. You can either use the LCM formula or the prime factorization method to calculate the LCM of 438, 824, 798, 686.

3. What is the LCM formula?

The LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}.