LCM of 797, 388, 855, 720
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 797, 388, 855, 720 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 797, 388, 855, 720. So, keep reading to learn more.
Given numbers are 797,388,855,720
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 797,388,855,720 is 1057587120.
Find LCM of 797,388,855,720 with Prime Factorization
| 2 | 797, 388, 855, 720 |
| 2 | 797, 194, 855, 360 |
| 3 | 797, 97, 855, 180 |
| 3 | 797, 97, 285, 60 |
| 5 | 797, 97, 95, 20 |
| 797, 97, 19, 4 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 3 x 5 x 797 x 97 x 19 x 4 = 1057587120
Therefore, the lowest common multiple of 797,388,855,720 is 1057587120.
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.
797 x 388 x 855 x 720 = 190365681600
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.
797 : 1, 797
388 : 1, 2, 4, 97, 194, 388
855 : 1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855
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
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 797,388,855,720, is 1.
Now, the common factors can be found like this.
797:797
388:2x 2x 97
855:3x 3x 5x 19
720:2x 2x 2x 2x 3x 3x 5
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 3x 3x 5 = 180
Therefore, the value for common factors is 180.
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 = 190365681600/(1x180)
LCM = 190365681600/180
LCM = 1057587120
Thus, we can understand that the LCM of 797,388,855,720 is 1057587120.
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FAQs on LCM of 797, 388, 855, 720
1. What is the LCM of 797, 388, 855, 720?
Answer: LCM of 797, 388, 855, 720 is 1057587120.
2. How to calculate the LCM of 797, 388, 855, 720?
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 797, 388, 855, 720.
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}.