LCM of 939, 819, 639, 720
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 939, 819, 639, 720 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 939, 819, 639, 720. So, keep reading to learn more.
Given numbers are 939,819,639,720
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 939,819,639,720 is 1456050960.
Find LCM of 939,819,639,720 with Prime Factorization
| 3 | 939, 819, 639, 720 |
| 3 | 313, 273, 213, 240 |
| 313, 91, 71, 80 |
Multiply the prime numbers at the bottom and the left side.
3 x 3 x 313 x 91 x 71 x 80 = 1456050960
Therefore, the lowest common multiple of 939,819,639,720 is 1456050960.
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.
939 x 819 x 639 x 720 = 353820383280
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.
939 : 1, 3, 313, 939
819 : 1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819
639 : 1, 3, 9, 71, 213, 639
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
3 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 939,819,639,720, is 3.
Now, the common factors can be found like this.
939:3x 313
819:3x 3x 7x 13
639:3x 3x 71
720:2x 2x 2x 2x 3x 3x 5
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 3 = 81
Therefore, the value for common factors is 81.
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 = 353820383280/(3x81)
LCM = 353820383280/243
LCM = 1456050960
Thus, we can understand that the LCM of 939,819,639,720 is 1456050960.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 939, 819, 639, 720
1. What is the LCM of 939, 819, 639, 720?
Answer: LCM of 939, 819, 639, 720 is 1456050960.
2. How to calculate the LCM of 939, 819, 639, 720?
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 939, 819, 639, 720.
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}.