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LCM of 121, 644, 214, 645

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


Find the LCM of 121, 644, 214, 645 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 121, 644, 214, 645. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 121,644,214,645

Given numbers are 121,644,214,645

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

The LCM of 121,644,214,645 is 5377924860.

Find LCM of 121,644,214,645 with Prime Factorization


2 121, 644, 214, 645
121, 322, 107, 645

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

2 x 121 x 322 x 107 x 645 = 5377924860

Therefore, the lowest common multiple of 121,644,214,645 is 5377924860.

LCM Formula to Find Lowest Common Multiple of 121,644,214,645

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.

121 x 644 x 214 x 645 = 10755849720

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.

121 : 1, 11, 121

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

214 : 1, 2, 107, 214

645 : 1, 3, 5, 15, 43, 129, 215, 645

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 121,644,214,645, is 1.

Now, the common factors can be found like this.

121:11x 11

644:2x 2x 7x 23

214:2x 107

645:3x 5x 43

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 = 10755849720/(1x2)

LCM = 10755849720/2

LCM = 5377924860

Thus, we can understand that the LCM of 121,644,214,645 is 5377924860.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 121, 644, 214, 645

1. What is the LCM of 121, 644, 214, 645?

Answer: LCM of 121, 644, 214, 645 is 5377924860.

2. How to calculate the LCM of 121, 644, 214, 645?

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 121, 644, 214, 645.

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}.