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LCM of 128, 779, 550, 421

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


Find the LCM of 128, 779, 550, 421 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 128, 779, 550, 421. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 128,779,550,421

Given numbers are 128,779,550,421

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

The LCM of 128,779,550,421 is 11544156800.

Find LCM of 128,779,550,421 with Prime Factorization


2 128, 779, 550, 421
64, 779, 275, 421

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

2 x 64 x 779 x 275 x 421 = 11544156800

Therefore, the lowest common multiple of 128,779,550,421 is 11544156800.

LCM Formula to Find Lowest Common Multiple of 128,779,550,421

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.

128 x 779 x 550 x 421 = 23088313600

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.

128 : 1, 2, 4, 8, 16, 32, 64, 128

779 : 1, 19, 41, 779

550 : 1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 275, 550

421 : 1, 421

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 128,779,550,421, is 1.

Now, the common factors can be found like this.

128:2x 2x 2x 2x 2x 2x 2

779:19x 41

550:2x 5x 5x 11

421:421

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 = 23088313600/(1x2)

LCM = 23088313600/2

LCM = 11544156800

Thus, we can understand that the LCM of 128,779,550,421 is 11544156800.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 128, 779, 550, 421

1. What is the LCM of 128, 779, 550, 421?

Answer: LCM of 128, 779, 550, 421 is 11544156800.

2. How to calculate the LCM of 128, 779, 550, 421?

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 128, 779, 550, 421.

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}.