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LCM of 621, 697, 646, 808

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


Find the LCM of 621, 697, 646, 808 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 621, 697, 646, 808. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 621,697,646,808

Given numbers are 621,697,646,808

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

The LCM of 621,697,646,808 is 6644913624.

Find LCM of 621,697,646,808 with Prime Factorization


2 621, 697, 646, 808
17 621, 697, 323, 404
621, 41, 19, 404

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

2 x 17 x 621 x 41 x 19 x 404 = 6644913624

Therefore, the lowest common multiple of 621,697,646,808 is 6644913624.

LCM Formula to Find Lowest Common Multiple of 621,697,646,808

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.

621 x 697 x 646 x 808 = 225927063216

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.

621 : 1, 3, 9, 23, 27, 69, 207, 621

697 : 1, 17, 41, 697

646 : 1, 2, 17, 19, 34, 38, 323, 646

808 : 1, 2, 4, 8, 101, 202, 404, 808

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 621,697,646,808, is 1.

Now, the common factors can be found like this.

621:3x 3x 3x 23

697:17x 41

646:2x 17x 19

808:2x 2x 2x 101

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

2x 17 = 34

Therefore, the value for common factors is 34.

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 = 225927063216/(1x34)

LCM = 225927063216/34

LCM = 6644913624

Thus, we can understand that the LCM of 621,697,646,808 is 6644913624.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 621, 697, 646, 808

1. What is the LCM of 621, 697, 646, 808?

Answer: LCM of 621, 697, 646, 808 is 6644913624.

2. How to calculate the LCM of 621, 697, 646, 808?

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 621, 697, 646, 808.

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}.