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LCM of 872, 869, 221, 780

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


Find the LCM of 872, 869, 221, 780 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 872, 869, 221, 780. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 872,869,221,780

Given numbers are 872,869,221,780

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

The LCM of 872,869,221,780 is 2512000920.

Find LCM of 872,869,221,780 with Prime Factorization


2 872, 869, 221, 780
2 436, 869, 221, 390
13 218, 869, 221, 195
218, 869, 17, 15

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

2 x 2 x 13 x 218 x 869 x 17 x 15 = 2512000920

Therefore, the lowest common multiple of 872,869,221,780 is 2512000920.

LCM Formula to Find Lowest Common Multiple of 872,869,221,780

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.

872 x 869 x 221 x 780 = 130624047840

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.

872 : 1, 2, 4, 8, 109, 218, 436, 872

869 : 1, 11, 79, 869

221 : 1, 13, 17, 221

780 : 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 872,869,221,780, is 1.

Now, the common factors can be found like this.

872:2x 2x 2x 109

869:11x 79

221:13x 17

780:2x 2x 3x 5x 13

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 13 = 52

Therefore, the value for common factors is 52.

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 = 130624047840/(1x52)

LCM = 130624047840/52

LCM = 2512000920

Thus, we can understand that the LCM of 872,869,221,780 is 2512000920.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 872, 869, 221, 780

1. What is the LCM of 872, 869, 221, 780?

Answer: LCM of 872, 869, 221, 780 is 2512000920.

2. How to calculate the LCM of 872, 869, 221, 780?

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 872, 869, 221, 780.

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}.