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LCM of 921, 720, 565, 715

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


Find the LCM of 921, 720, 565, 715 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 921, 720, 565, 715. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 921,720,565,715

Given numbers are 921,720,565,715

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

The LCM of 921,720,565,715 is 3571785360.

Find LCM of 921,720,565,715 with Prime Factorization


3 921, 720, 565, 715
5 307, 240, 565, 715
307, 48, 113, 143

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

3 x 5 x 307 x 48 x 113 x 143 = 3571785360

Therefore, the lowest common multiple of 921,720,565,715 is 3571785360.

LCM Formula to Find Lowest Common Multiple of 921,720,565,715

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.

921 x 720 x 565 x 715 = 267883902000

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.

921 : 1, 3, 307, 921

720 : 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720

565 : 1, 5, 113, 565

715 : 1, 5, 11, 13, 55, 65, 143, 715

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 921,720,565,715, is 1.

Now, the common factors can be found like this.

921:3x 307

720:2x 2x 2x 2x 3x 3x 5

565:5x 113

715:5x 11x 13

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

3x 5x 5 = 75

Therefore, the value for common factors is 75.

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 = 267883902000/(1x75)

LCM = 267883902000/75

LCM = 3571785360

Thus, we can understand that the LCM of 921,720,565,715 is 3571785360.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 921, 720, 565, 715

1. What is the LCM of 921, 720, 565, 715?

Answer: LCM of 921, 720, 565, 715 is 3571785360.

2. How to calculate the LCM of 921, 720, 565, 715?

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 921, 720, 565, 715.

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}.