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LCM of 686, 311, 638, 555

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


Find the LCM of 686, 311, 638, 555 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 686, 311, 638, 555. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 686,311,638,555

Given numbers are 686,311,638,555

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

The LCM of 686,311,638,555 is 37771842570.

Find LCM of 686,311,638,555 with Prime Factorization


2 686, 311, 638, 555
343, 311, 319, 555

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

2 x 343 x 311 x 319 x 555 = 37771842570

Therefore, the lowest common multiple of 686,311,638,555 is 37771842570.

LCM Formula to Find Lowest Common Multiple of 686,311,638,555

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.

686 x 311 x 638 x 555 = 75543685140

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.

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

311 : 1, 311

638 : 1, 2, 11, 22, 29, 58, 319, 638

555 : 1, 3, 5, 15, 37, 111, 185, 555

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 686,311,638,555, is 1.

Now, the common factors can be found like this.

686:2x 7x 7x 7

311:311

638:2x 11x 29

555:3x 5x 37

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

2 = 2

Therefore, the value for common factors is 2.

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 = 75543685140/(1x2)

LCM = 75543685140/2

LCM = 37771842570

Thus, we can understand that the LCM of 686,311,638,555 is 37771842570.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 686, 311, 638, 555

1. What is the LCM of 686, 311, 638, 555?

Answer: LCM of 686, 311, 638, 555 is 37771842570.

2. How to calculate the LCM of 686, 311, 638, 555?

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 686, 311, 638, 555.

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}.