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LCM of 198, 305, 638

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


Find the LCM of 198, 305, 638 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 198, 305, 638. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 198,305,638

Given numbers are 198,305,638

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

The LCM of 198,305,638 is 1751310.

Find LCM of 198,305,638 with Prime Factorization


2 198, 305, 638
11 99, 305, 319
9, 305, 29

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

2 x 11 x 9 x 305 x 29 = 1751310

Therefore, the lowest common multiple of 198,305,638 is 1751310.

LCM Formula to Find Lowest Common Multiple of 198,305,638

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.

198 x 305 x 638 = 38528820

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.

198 : 1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198

305 : 1, 5, 61, 305

638 : 1, 2, 11, 22, 29, 58, 319, 638

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 198,305,638, is 1.

Now, the common factors can be found like this.

198:2x 3x 3x 11

305:5x 61

638:2x 11x 29

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

2x 11 = 22

Therefore, the value for common factors is 22.

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 = 38528820/(1x22)

LCM = 38528820/22

LCM = 1751310

Thus, we can understand that the LCM of 198,305,638 is 1751310.

LCM of two or more Numbers Calculation Examples

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FAQs on LCM of 198, 305, 638

1. What is the LCM of 198, 305, 638?

Answer: LCM of 198, 305, 638 is 1751310.

2. How to calculate the LCM of 198, 305, 638?

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 198, 305, 638.

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}.