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LCM of 645, 668, 913, 869

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


Find the LCM of 645, 668, 913, 869 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 645, 668, 913, 869. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 645,668,913,869

Given numbers are 645,668,913,869

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

The LCM of 645,668,913,869 is 31076639220.

Find LCM of 645,668,913,869 with Prime Factorization


11 645, 668, 913, 869
645, 668, 83, 79

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

11 x 645 x 668 x 83 x 79 = 31076639220

Therefore, the lowest common multiple of 645,668,913,869 is 31076639220.

LCM Formula to Find Lowest Common Multiple of 645,668,913,869

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.

645 x 668 x 913 x 869 = 341843031420

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.

645 : 1, 3, 5, 15, 43, 129, 215, 645

668 : 1, 2, 4, 167, 334, 668

913 : 1, 11, 83, 913

869 : 1, 11, 79, 869

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 645,668,913,869, is 1.

Now, the common factors can be found like this.

645:3x 5x 43

668:2x 2x 167

913:11x 83

869:11x 79

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

11 = 11

Therefore, the value for common factors is 11.

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 = 341843031420/(1x11)

LCM = 341843031420/11

LCM = 31076639220

Thus, we can understand that the LCM of 645,668,913,869 is 31076639220.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 645, 668, 913, 869

1. What is the LCM of 645, 668, 913, 869?

Answer: LCM of 645, 668, 913, 869 is 31076639220.

2. How to calculate the LCM of 645, 668, 913, 869?

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 645, 668, 913, 869.

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}.