LCM of 481, 720, 838, 780
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 481, 720, 838, 780 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 481, 720, 838, 780. So, keep reading to learn more.
Given numbers are 481,720,838,780
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 481,720,838,780 is 145108080.
Find LCM of 481,720,838,780 with Prime Factorization
| 2 | 481, 720, 838, 780 |
| 2 | 481, 360, 419, 390 |
| 3 | 481, 180, 419, 195 |
| 5 | 481, 60, 419, 65 |
| 13 | 481, 12, 419, 13 |
| 37, 12, 419, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 5 x 13 x 37 x 12 x 419 x 1 = 145108080
Therefore, the lowest common multiple of 481,720,838,780 is 145108080.
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.
481 x 720 x 838 x 780 = 226368604800
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.
481 : 1, 13, 37, 481
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
838 : 1, 2, 419, 838
780 : 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 481,720,838,780, is 1.
Now, the common factors can be found like this.
481:13x 37
720:2x 2x 2x 2x 3x 3x 5
838:2x 419
780:2x 2x 3x 5x 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 2x 3x 5x 13 = 1560
Therefore, the value for common factors is 1560.
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 = 226368604800/(1x1560)
LCM = 226368604800/1560
LCM = 145108080
Thus, we can understand that the LCM of 481,720,838,780 is 145108080.
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FAQs on LCM of 481, 720, 838, 780
1. What is the LCM of 481, 720, 838, 780?
Answer: LCM of 481, 720, 838, 780 is 145108080.
2. How to calculate the LCM of 481, 720, 838, 780?
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 481, 720, 838, 780.
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}.