LCM of 789, 342, 810, 789
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 789, 342, 810, 789 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 789, 342, 810, 789. So, keep reading to learn more.
Given numbers are 789,342,810,789
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 789,342,810,789 is 4047570.
Find LCM of 789,342,810,789 with Prime Factorization
| 2 | 789, 342, 810, 789 |
| 3 | 789, 171, 405, 789 |
| 3 | 263, 57, 135, 263 |
| 263 | 263, 19, 45, 263 |
| 1, 19, 45, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 3 x 263 x 1 x 19 x 45 x 1 = 4047570
Therefore, the lowest common multiple of 789,342,810,789 is 4047570.
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.
789 x 342 x 810 x 789 = 172450767420
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.
789 : 1, 3, 263, 789
342 : 1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 342
810 : 1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810
789 : 1, 3, 263, 789
3 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 789,342,810,789, is 3.
Now, the common factors can be found like this.
789:3x 263
342:2x 3x 3x 19
810:2x 3x 3x 3x 3x 5
789:3x 263
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3x 3x 3x 263 = 14202
Therefore, the value for common factors is 14202.
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 = 172450767420/(3x14202)
LCM = 172450767420/42606
LCM = 4047570
Thus, we can understand that the LCM of 789,342,810,789 is 4047570.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 789, 342, 810, 789
1. What is the LCM of 789, 342, 810, 789?
Answer: LCM of 789, 342, 810, 789 is 4047570.
2. How to calculate the LCM of 789, 342, 810, 789?
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 789, 342, 810, 789.
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}.