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LCM of 661, 920, 368, 891

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


Find the LCM of 661, 920, 368, 891 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 661, 920, 368, 891. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 661,920,368,891

Given numbers are 661,920,368,891

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

The LCM of 661,920,368,891 is 1083669840.

Find LCM of 661,920,368,891 with Prime Factorization


2 661, 920, 368, 891
2 661, 460, 184, 891
2 661, 230, 92, 891
23 661, 115, 46, 891
661, 5, 2, 891

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

2 x 2 x 2 x 23 x 661 x 5 x 2 x 891 = 1083669840

Therefore, the lowest common multiple of 661,920,368,891 is 1083669840.

LCM Formula to Find Lowest Common Multiple of 661,920,368,891

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.

661 x 920 x 368 x 891 = 199395250560

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.

661 : 1, 661

920 : 1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920

368 : 1, 2, 4, 8, 16, 23, 46, 92, 184, 368

891 : 1, 3, 9, 11, 27, 33, 81, 99, 297, 891

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 661,920,368,891, is 1.

Now, the common factors can be found like this.

661:661

920:2x 2x 2x 5x 23

368:2x 2x 2x 2x 23

891:3x 3x 3x 3x 11

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

2x 2x 2x 23 = 184

Therefore, the value for common factors is 184.

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 = 199395250560/(1x184)

LCM = 199395250560/184

LCM = 1083669840

Thus, we can understand that the LCM of 661,920,368,891 is 1083669840.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 661, 920, 368, 891

1. What is the LCM of 661, 920, 368, 891?

Answer: LCM of 661, 920, 368, 891 is 1083669840.

2. How to calculate the LCM of 661, 920, 368, 891?

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 661, 920, 368, 891.

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}.