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LCM of 720, 940, 647, 407

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


Find the LCM of 720, 940, 647, 407 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 720, 940, 647, 407. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 720,940,647,407

Given numbers are 720,940,647,407

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

The LCM of 720,940,647,407 is 8911053360.

Find LCM of 720,940,647,407 with Prime Factorization


2 720, 940, 647, 407
2 360, 470, 647, 407
5 180, 235, 647, 407
36, 47, 647, 407

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

2 x 2 x 5 x 36 x 47 x 647 x 407 = 8911053360

Therefore, the lowest common multiple of 720,940,647,407 is 8911053360.

LCM Formula to Find Lowest Common Multiple of 720,940,647,407

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.

720 x 940 x 647 x 407 = 178221067200

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.

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

940 : 1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940

647 : 1, 647

407 : 1, 11, 37, 407

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 720,940,647,407, is 1.

Now, the common factors can be found like this.

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

940:2x 2x 5x 47

647:647

407:11x 37

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 = 178221067200/(1x20)

LCM = 178221067200/20

LCM = 8911053360

Thus, we can understand that the LCM of 720,940,647,407 is 8911053360.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 720, 940, 647, 407

1. What is the LCM of 720, 940, 647, 407?

Answer: LCM of 720, 940, 647, 407 is 8911053360.

2. How to calculate the LCM of 720, 940, 647, 407?

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 720, 940, 647, 407.

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}.