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LCM of 561, 874, 920, 897

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


Find the LCM of 561, 874, 920, 897 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 561, 874, 920, 897. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 561,874,920,897

Given numbers are 561,874,920,897

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

The LCM of 561,874,920,897 is 127481640.

Find LCM of 561,874,920,897 with Prime Factorization


2 561, 874, 920, 897
3 561, 437, 460, 897
23 187, 437, 460, 299
187, 19, 20, 13

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

2 x 3 x 23 x 187 x 19 x 20 x 13 = 127481640

Therefore, the lowest common multiple of 561,874,920,897 is 127481640.

LCM Formula to Find Lowest Common Multiple of 561,874,920,897

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.

561 x 874 x 920 x 897 = 404626725360

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.

561 : 1, 3, 11, 17, 33, 51, 187, 561

874 : 1, 2, 19, 23, 38, 46, 437, 874

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

897 : 1, 3, 13, 23, 39, 69, 299, 897

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 561,874,920,897, is 1.

Now, the common factors can be found like this.

561:3x 11x 17

874:2x 19x 23

920:2x 2x 2x 5x 23

897:3x 13x 23

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

2x 3x 23x 23 = 3174

Therefore, the value for common factors is 3174.

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 = 404626725360/(1x3174)

LCM = 404626725360/3174

LCM = 127481640

Thus, we can understand that the LCM of 561,874,920,897 is 127481640.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 561, 874, 920, 897

1. What is the LCM of 561, 874, 920, 897?

Answer: LCM of 561, 874, 920, 897 is 127481640.

2. How to calculate the LCM of 561, 874, 920, 897?

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 561, 874, 920, 897.

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}.