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LCM of 686, 389, 208, 830

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


Find the LCM of 686, 389, 208, 830 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, 389, 208, 830. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 686,389,208,830

Given numbers are 686,389,208,830

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

The LCM of 686,389,208,830 is 11517418640.

Find LCM of 686,389,208,830 with Prime Factorization


2 686, 389, 208, 830
343, 389, 104, 415

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

2 x 343 x 389 x 104 x 415 = 11517418640

Therefore, the lowest common multiple of 686,389,208,830 is 11517418640.

LCM Formula to Find Lowest Common Multiple of 686,389,208,830

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 389 x 208 x 830 = 46069674560

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

389 : 1, 389

208 : 1, 2, 4, 8, 13, 16, 26, 52, 104, 208

830 : 1, 2, 5, 10, 83, 166, 415, 830

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 686,389,208,830, is 1.

Now, the common factors can be found like this.

686:2x 7x 7x 7

389:389

208:2x 2x 2x 2x 13

830:2x 5x 83

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

2x 2 = 4

Therefore, the value for common factors is 4.

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 = 46069674560/(1x4)

LCM = 46069674560/4

LCM = 11517418640

Thus, we can understand that the LCM of 686,389,208,830 is 11517418640.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 686, 389, 208, 830

1. What is the LCM of 686, 389, 208, 830?

Answer: LCM of 686, 389, 208, 830 is 11517418640.

2. How to calculate the LCM of 686, 389, 208, 830?

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, 389, 208, 830.

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}.