LCM of 622, 540, 689, 621
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 622, 540, 689, 621 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 622, 540, 689, 621. So, keep reading to learn more.
Given numbers are 622,540,689,621
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 622,540,689,621 is 2661345180.
Find LCM of 622,540,689,621 with Prime Factorization
| 2 | 622, 540, 689, 621 |
| 3 | 311, 270, 689, 621 |
| 3 | 311, 90, 689, 207 |
| 3 | 311, 30, 689, 69 |
| 311, 10, 689, 23 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 3 x 3 x 311 x 10 x 689 x 23 = 2661345180
Therefore, the lowest common multiple of 622,540,689,621 is 2661345180.
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.
622 x 540 x 689 x 621 = 143712639720
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.
622 : 1, 2, 311, 622
540 : 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540
689 : 1, 13, 53, 689
621 : 1, 3, 9, 23, 27, 69, 207, 621
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 622,540,689,621, is 1.
Now, the common factors can be found like this.
622:2x 311
540:2x 2x 3x 3x 3x 5
689:13x 53
621:3x 3x 3x 23
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 3 = 54
Therefore, the value for common factors is 54.
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 = 143712639720/(1x54)
LCM = 143712639720/54
LCM = 2661345180
Thus, we can understand that the LCM of 622,540,689,621 is 2661345180.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 622, 540, 689, 621
1. What is the LCM of 622, 540, 689, 621?
Answer: LCM of 622, 540, 689, 621 is 2661345180.
2. How to calculate the LCM of 622, 540, 689, 621?
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 622, 540, 689, 621.
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}.