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LCM of 920, 180, 864, 865

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


Find the LCM of 920, 180, 864, 865 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, 180, 864, 865. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 920,180,864,865

Given numbers are 920,180,864,865

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

The LCM of 920,180,864,865 is 17189280.

Find LCM of 920,180,864,865 with Prime Factorization


2 920, 180, 864, 865
2 460, 90, 432, 865
2 230, 45, 216, 865
3 115, 45, 108, 865
3 115, 15, 36, 865
5 115, 5, 12, 865
23, 1, 12, 173

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

2 x 2 x 2 x 3 x 3 x 5 x 23 x 1 x 12 x 173 = 17189280

Therefore, the lowest common multiple of 920,180,864,865 is 17189280.

LCM Formula to Find Lowest Common Multiple of 920,180,864,865

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 180 x 864 x 865 = 123762816000

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

180 : 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180

864 : 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 72, 96, 108, 144, 216, 288, 432, 864

865 : 1, 5, 173, 865

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 920,180,864,865, is 1.

Now, the common factors can be found like this.

920:2x 2x 2x 5x 23

180:2x 2x 3x 3x 5

864:2x 2x 2x 2x 2x 3x 3x 3

865:5x 173

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 2x 2x 2x 3x 3x 5x 5 = 7200

Therefore, the value for common factors is 7200.

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 = 123762816000/(1x7200)

LCM = 123762816000/7200

LCM = 17189280

Thus, we can understand that the LCM of 920,180,864,865 is 17189280.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 920, 180, 864, 865

1. What is the LCM of 920, 180, 864, 865?

Answer: LCM of 920, 180, 864, 865 is 17189280.

2. How to calculate the LCM of 920, 180, 864, 865?

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, 180, 864, 865.

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}.