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LCM of 642, 753, 647

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


Find the LCM of 642, 753, 647 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 642, 753, 647. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 642,753,647

Given numbers are 642,753,647

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

The LCM of 642,753,647 is 104258874.

Find LCM of 642,753,647 with Prime Factorization


3 642, 753, 647
214, 251, 647

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

3 x 214 x 251 x 647 = 104258874

Therefore, the lowest common multiple of 642,753,647 is 104258874.

LCM Formula to Find Lowest Common Multiple of 642,753,647

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.

642 x 753 x 647 = 312776622

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.

642 : 1, 2, 3, 6, 107, 214, 321, 642

753 : 1, 3, 251, 753

647 : 1, 647

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 642,753,647, is 1.

Now, the common factors can be found like this.

642:2x 3x 107

753:3x 251

647:647

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

3 = 3

Therefore, the value for common factors is 3.

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 = 312776622/(1x3)

LCM = 312776622/3

LCM = 104258874

Thus, we can understand that the LCM of 642,753,647 is 104258874.

LCM of two or more Numbers Calculation Examples

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FAQs on LCM of 642, 753, 647

1. What is the LCM of 642, 753, 647?

Answer: LCM of 642, 753, 647 is 104258874.

2. How to calculate the LCM of 642, 753, 647?

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 642, 753, 647.

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}.