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LCM of 643, 755, 810, 495

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


Find the LCM of 643, 755, 810, 495 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 643, 755, 810, 495. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 643,755,810,495

Given numbers are 643,755,810,495

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

The LCM of 643,755,810,495 is 865098630.

Find LCM of 643,755,810,495 with Prime Factorization


3 643, 755, 810, 495
3 643, 755, 270, 165
5 643, 755, 90, 55
643, 151, 18, 11

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

3 x 3 x 5 x 643 x 151 x 18 x 11 = 865098630

Therefore, the lowest common multiple of 643,755,810,495 is 865098630.

LCM Formula to Find Lowest Common Multiple of 643,755,810,495

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.

643 x 755 x 810 x 495 = 194647191750

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.

643 : 1, 643

755 : 1, 5, 151, 755

810 : 1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810

495 : 1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 643,755,810,495, is 1.

Now, the common factors can be found like this.

643:643

755:5x 151

810:2x 3x 3x 3x 3x 5

495:3x 3x 5x 11

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

3x 3x 5x 5 = 225

Therefore, the value for common factors is 225.

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 = 194647191750/(1x225)

LCM = 194647191750/225

LCM = 865098630

Thus, we can understand that the LCM of 643,755,810,495 is 865098630.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 643, 755, 810, 495

1. What is the LCM of 643, 755, 810, 495?

Answer: LCM of 643, 755, 810, 495 is 865098630.

2. How to calculate the LCM of 643, 755, 810, 495?

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 643, 755, 810, 495.

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}.