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LCM of 987, 424, 638, 317

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


Find the LCM of 987, 424, 638, 317 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 987, 424, 638, 317. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 987,424,638,317

Given numbers are 987,424,638,317

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

The LCM of 987,424,638,317 is 42318762024.

Find LCM of 987,424,638,317 with Prime Factorization


2 987, 424, 638, 317
987, 212, 319, 317

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

2 x 987 x 212 x 319 x 317 = 42318762024

Therefore, the lowest common multiple of 987,424,638,317 is 42318762024.

LCM Formula to Find Lowest Common Multiple of 987,424,638,317

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.

987 x 424 x 638 x 317 = 84637524048

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.

987 : 1, 3, 7, 21, 47, 141, 329, 987

424 : 1, 2, 4, 8, 53, 106, 212, 424

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

317 : 1, 317

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 987,424,638,317, is 1.

Now, the common factors can be found like this.

987:3x 7x 47

424:2x 2x 2x 53

638:2x 11x 29

317:317

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 = 84637524048/(1x2)

LCM = 84637524048/2

LCM = 42318762024

Thus, we can understand that the LCM of 987,424,638,317 is 42318762024.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 987, 424, 638, 317

1. What is the LCM of 987, 424, 638, 317?

Answer: LCM of 987, 424, 638, 317 is 42318762024.

2. How to calculate the LCM of 987, 424, 638, 317?

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 987, 424, 638, 317.

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}.