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LCM of 638, 695, 835, 858

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


Find the LCM of 638, 695, 835, 858 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 638, 695, 835, 858. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 638,695,835,858

Given numbers are 638,695,835,858

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

The LCM of 638,695,835,858 is 2887929330.

Find LCM of 638,695,835,858 with Prime Factorization


2 638, 695, 835, 858
5 319, 695, 835, 429
11 319, 139, 167, 429
29, 139, 167, 39

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

2 x 5 x 11 x 29 x 139 x 167 x 39 = 2887929330

Therefore, the lowest common multiple of 638,695,835,858 is 2887929330.

LCM Formula to Find Lowest Common Multiple of 638,695,835,858

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.

638 x 695 x 835 x 858 = 317672226300

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.

638 : 1, 2, 11, 22, 29, 58, 319, 638

695 : 1, 5, 139, 695

835 : 1, 5, 167, 835

858 : 1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 143, 286, 429, 858

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 638,695,835,858, is 1.

Now, the common factors can be found like this.

638:2x 11x 29

695:5x 139

835:5x 167

858:2x 3x 11x 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 5x 11 = 110

Therefore, the value for common factors is 110.

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 = 317672226300/(1x110)

LCM = 317672226300/110

LCM = 2887929330

Thus, we can understand that the LCM of 638,695,835,858 is 2887929330.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 638, 695, 835, 858

1. What is the LCM of 638, 695, 835, 858?

Answer: LCM of 638, 695, 835, 858 is 2887929330.

2. How to calculate the LCM of 638, 695, 835, 858?

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 638, 695, 835, 858.

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}.