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LCM of 621, 682, 805, 620

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


Find the LCM of 621, 682, 805, 620 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, 682, 805, 620. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 621,682,805,620

Given numbers are 621,682,805,620

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

The LCM of 621,682,805,620 is 29646540.

Find LCM of 621,682,805,620 with Prime Factorization


2 621, 682, 805, 620
5 621, 341, 805, 310
23 621, 341, 161, 62
31 27, 341, 7, 62
27, 11, 7, 2

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

2 x 5 x 23 x 31 x 27 x 11 x 7 x 2 = 29646540

Therefore, the lowest common multiple of 621,682,805,620 is 29646540.

LCM Formula to Find Lowest Common Multiple of 621,682,805,620

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 682 x 805 x 620 = 211379830200

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

682 : 1, 2, 11, 22, 31, 62, 341, 682

805 : 1, 5, 7, 23, 35, 115, 161, 805

620 : 1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 621,682,805,620, is 1.

Now, the common factors can be found like this.

621:3x 3x 3x 23

682:2x 11x 31

805:5x 7x 23

620:2x 2x 5x 31

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 23x 31 = 7130

Therefore, the value for common factors is 7130.

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 = 211379830200/(1x7130)

LCM = 211379830200/7130

LCM = 29646540

Thus, we can understand that the LCM of 621,682,805,620 is 29646540.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 621, 682, 805, 620

1. What is the LCM of 621, 682, 805, 620?

Answer: LCM of 621, 682, 805, 620 is 29646540.

2. How to calculate the LCM of 621, 682, 805, 620?

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, 682, 805, 620.

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}.