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LCM of 121, 838, 646, 800

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


Find the LCM of 121, 838, 646, 800 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 121, 838, 646, 800. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 121,838,646,800

Given numbers are 121,838,646,800

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

The LCM of 121,838,646,800 is 13100621600.

Find LCM of 121,838,646,800 with Prime Factorization


2 121, 838, 646, 800
121, 419, 323, 400

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

2 x 121 x 419 x 323 x 400 = 13100621600

Therefore, the lowest common multiple of 121,838,646,800 is 13100621600.

LCM Formula to Find Lowest Common Multiple of 121,838,646,800

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.

121 x 838 x 646 x 800 = 52402486400

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.

121 : 1, 11, 121

838 : 1, 2, 419, 838

646 : 1, 2, 17, 19, 34, 38, 323, 646

800 : 1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 121,838,646,800, is 1.

Now, the common factors can be found like this.

121:11x 11

838:2x 419

646:2x 17x 19

800:2x 2x 2x 2x 2x 5x 5

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 = 52402486400/(1x4)

LCM = 52402486400/4

LCM = 13100621600

Thus, we can understand that the LCM of 121,838,646,800 is 13100621600.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 121, 838, 646, 800

1. What is the LCM of 121, 838, 646, 800?

Answer: LCM of 121, 838, 646, 800 is 13100621600.

2. How to calculate the LCM of 121, 838, 646, 800?

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 121, 838, 646, 800.

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}.