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LCM of 680, 380, 615

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


Find the LCM of 680, 380, 615 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 680, 380, 615. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 680,380,615

Given numbers are 680,380,615

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

The LCM of 680,380,615 is 1589160.

Find LCM of 680,380,615 with Prime Factorization


2 680, 380, 615
2 340, 190, 615
5 170, 95, 615
34, 19, 123

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

2 x 2 x 5 x 34 x 19 x 123 = 1589160

Therefore, the lowest common multiple of 680,380,615 is 1589160.

LCM Formula to Find Lowest Common Multiple of 680,380,615

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.

680 x 380 x 615 = 158916000

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.

680 : 1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680

380 : 1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380

615 : 1, 3, 5, 15, 41, 123, 205, 615

5 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 680,380,615, is 5.

Now, the common factors can be found like this.

680:2x 2x 2x 5x 17

380:2x 2x 5x 19

615:3x 5x 41

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 = 158916000/(5x20)

LCM = 158916000/100

LCM = 1589160

Thus, we can understand that the LCM of 680,380,615 is 1589160.

LCM of two or more Numbers Calculation Examples

Here are some samples of LCM of two or more Numbers calculations.

FAQs on LCM of 680, 380, 615

1. What is the LCM of 680, 380, 615?

Answer: LCM of 680, 380, 615 is 1589160.

2. How to calculate the LCM of 680, 380, 615?

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 680, 380, 615.

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}.