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LCM of 831, 320, 618, 790

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


Find the LCM of 831, 320, 618, 790 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 831, 320, 618, 790. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 831,320,618,790

Given numbers are 831,320,618,790

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

The LCM of 831,320,618,790 is 2163791040.

Find LCM of 831,320,618,790 with Prime Factorization


2 831, 320, 618, 790
3 831, 160, 309, 395
5 277, 160, 103, 395
277, 32, 103, 79

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

2 x 3 x 5 x 277 x 32 x 103 x 79 = 2163791040

Therefore, the lowest common multiple of 831,320,618,790 is 2163791040.

LCM Formula to Find Lowest Common Multiple of 831,320,618,790

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.

831 x 320 x 618 x 790 = 129827462400

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.

831 : 1, 3, 277, 831

320 : 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320

618 : 1, 2, 3, 6, 103, 206, 309, 618

790 : 1, 2, 5, 10, 79, 158, 395, 790

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 831,320,618,790, is 1.

Now, the common factors can be found like this.

831:3x 277

320:2x 2x 2x 2x 2x 2x 5

618:2x 3x 103

790:2x 5x 79

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 5 = 60

Therefore, the value for common factors is 60.

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 = 129827462400/(1x60)

LCM = 129827462400/60

LCM = 2163791040

Thus, we can understand that the LCM of 831,320,618,790 is 2163791040.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 831, 320, 618, 790

1. What is the LCM of 831, 320, 618, 790?

Answer: LCM of 831, 320, 618, 790 is 2163791040.

2. How to calculate the LCM of 831, 320, 618, 790?

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 831, 320, 618, 790.

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}.