LCM of 720, 843, 689, 468
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 720, 843, 689, 468 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, 843, 689, 468. So, keep reading to learn more.
Given numbers are 720,843,689,468
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 720,843,689,468 is 139398480.
Find LCM of 720,843,689,468 with Prime Factorization
| 2 | 720, 843, 689, 468 |
| 2 | 360, 843, 689, 234 |
| 3 | 180, 843, 689, 117 |
| 3 | 60, 281, 689, 39 |
| 13 | 20, 281, 689, 13 |
| 20, 281, 53, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 3 x 13 x 20 x 281 x 53 x 1 = 139398480
Therefore, the lowest common multiple of 720,843,689,468 is 139398480.
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 843 x 689 x 468 = 195715465920
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
843 : 1, 3, 281, 843
689 : 1, 13, 53, 689
468 : 1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 720,843,689,468, is 1.
Now, the common factors can be found like this.
720:2x 2x 2x 2x 3x 3x 5
843:3x 281
689:13x 53
468:2x 2x 3x 3x 13
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 3x 13 = 1404
Therefore, the value for common factors is 1404.
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 = 195715465920/(1x1404)
LCM = 195715465920/1404
LCM = 139398480
Thus, we can understand that the LCM of 720,843,689,468 is 139398480.
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FAQs on LCM of 720, 843, 689, 468
1. What is the LCM of 720, 843, 689, 468?
Answer: LCM of 720, 843, 689, 468 is 139398480.
2. How to calculate the LCM of 720, 843, 689, 468?
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, 843, 689, 468.
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}.