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LCM of 461, 644, 787, 642

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


Find the LCM of 461, 644, 787, 642 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 461, 644, 787, 642. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 461,644,787,642

Given numbers are 461,644,787,642

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

The LCM of 461,644,787,642 is 75000914268.

Find LCM of 461,644,787,642 with Prime Factorization


2 461, 644, 787, 642
461, 322, 787, 321

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

2 x 461 x 322 x 787 x 321 = 75000914268

Therefore, the lowest common multiple of 461,644,787,642 is 75000914268.

LCM Formula to Find Lowest Common Multiple of 461,644,787,642

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.

461 x 644 x 787 x 642 = 150001828536

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.

461 : 1, 461

644 : 1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644

787 : 1, 787

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

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 461,644,787,642, is 1.

Now, the common factors can be found like this.

461:461

644:2x 2x 7x 23

787:787

642:2x 3x 107

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 = 150001828536/(1x2)

LCM = 150001828536/2

LCM = 75000914268

Thus, we can understand that the LCM of 461,644,787,642 is 75000914268.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 461, 644, 787, 642

1. What is the LCM of 461, 644, 787, 642?

Answer: LCM of 461, 644, 787, 642 is 75000914268.

2. How to calculate the LCM of 461, 644, 787, 642?

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 461, 644, 787, 642.

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}.