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LCM of 903, 815, 620, 428

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


Find the LCM of 903, 815, 620, 428 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 903, 815, 620, 428. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 903,815,620,428

Given numbers are 903,815,620,428

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

The LCM of 903,815,620,428 is 9764518260.

Find LCM of 903,815,620,428 with Prime Factorization


2 903, 815, 620, 428
2 903, 815, 310, 214
5 903, 815, 155, 107
903, 163, 31, 107

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

2 x 2 x 5 x 903 x 163 x 31 x 107 = 9764518260

Therefore, the lowest common multiple of 903,815,620,428 is 9764518260.

LCM Formula to Find Lowest Common Multiple of 903,815,620,428

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.

903 x 815 x 620 x 428 = 195290365200

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.

903 : 1, 3, 7, 21, 43, 129, 301, 903

815 : 1, 5, 163, 815

620 : 1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620

428 : 1, 2, 4, 107, 214, 428

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 903,815,620,428, is 1.

Now, the common factors can be found like this.

903:3x 7x 43

815:5x 163

620:2x 2x 5x 31

428:2x 2x 107

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 5 = 20

Therefore, the value for common factors is 20.

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 = 195290365200/(1x20)

LCM = 195290365200/20

LCM = 9764518260

Thus, we can understand that the LCM of 903,815,620,428 is 9764518260.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 903, 815, 620, 428

1. What is the LCM of 903, 815, 620, 428?

Answer: LCM of 903, 815, 620, 428 is 9764518260.

2. How to calculate the LCM of 903, 815, 620, 428?

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 903, 815, 620, 428.

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}.