LCM of 765, 813, 891, 783
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 765, 813, 891, 783 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 765, 813, 891, 783. So, keep reading to learn more.
Given numbers are 765,813,891,783
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 765,813,891,783 is 595201365.
Find LCM of 765,813,891,783 with Prime Factorization
| 3 | 765, 813, 891, 783 |
| 3 | 255, 271, 297, 261 |
| 3 | 85, 271, 99, 87 |
| 85, 271, 33, 29 |
Multiply the prime numbers at the bottom and the left side.
3 x 3 x 3 x 85 x 271 x 33 x 29 = 595201365
Therefore, the lowest common multiple of 765,813,891,783 is 595201365.
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.
765 x 813 x 891 x 783 = 433901795085
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.
765 : 1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765
813 : 1, 3, 271, 813
891 : 1, 3, 9, 11, 27, 33, 81, 99, 297, 891
783 : 1, 3, 9, 27, 29, 87, 261, 783
3 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 765,813,891,783, is 3.
Now, the common factors can be found like this.
765:3x 3x 5x 17
813:3x 271
891:3x 3x 3x 3x 11
783:3x 3x 3x 29
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 3x 3x 3x 3 = 243
Therefore, the value for common factors is 243.
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 = 433901795085/(3x243)
LCM = 433901795085/729
LCM = 595201365
Thus, we can understand that the LCM of 765,813,891,783 is 595201365.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 765, 813, 891, 783
1. What is the LCM of 765, 813, 891, 783?
Answer: LCM of 765, 813, 891, 783 is 595201365.
2. How to calculate the LCM of 765, 813, 891, 783?
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 765, 813, 891, 783.
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}.