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LCM of 920, 685, 403, 855

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


Find the LCM of 920, 685, 403, 855 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 920, 685, 403, 855. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 920,685,403,855

Given numbers are 920,685,403,855

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

The LCM of 920,685,403,855 is 8685794520.

Find LCM of 920,685,403,855 with Prime Factorization


5 920, 685, 403, 855
184, 137, 403, 171

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

5 x 184 x 137 x 403 x 171 = 8685794520

Therefore, the lowest common multiple of 920,685,403,855 is 8685794520.

LCM Formula to Find Lowest Common Multiple of 920,685,403,855

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.

920 x 685 x 403 x 855 = 217144863000

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.

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

685 : 1, 5, 137, 685

403 : 1, 13, 31, 403

855 : 1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 920,685,403,855, is 1.

Now, the common factors can be found like this.

920:2x 2x 2x 5x 23

685:5x 137

403:13x 31

855:3x 3x 5x 19

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

5x 5 = 25

Therefore, the value for common factors is 25.

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 = 217144863000/(1x25)

LCM = 217144863000/25

LCM = 8685794520

Thus, we can understand that the LCM of 920,685,403,855 is 8685794520.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 920, 685, 403, 855

1. What is the LCM of 920, 685, 403, 855?

Answer: LCM of 920, 685, 403, 855 is 8685794520.

2. How to calculate the LCM of 920, 685, 403, 855?

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 920, 685, 403, 855.

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}.