LCM of 511, 720, 765, 938
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 511, 720, 765, 938 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 511, 720, 765, 938. So, keep reading to learn more.
Given numbers are 511,720,765,938
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 511,720,765,938 is 419060880.
Find LCM of 511,720,765,938 with Prime Factorization
| 2 | 511, 720, 765, 938 |
| 3 | 511, 360, 765, 469 |
| 3 | 511, 120, 255, 469 |
| 5 | 511, 40, 85, 469 |
| 7 | 511, 8, 17, 469 |
| 73, 8, 17, 67 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 3 x 5 x 7 x 73 x 8 x 17 x 67 = 419060880
Therefore, the lowest common multiple of 511,720,765,938 is 419060880.
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.
511 x 720 x 765 x 938 = 264008354400
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.
511 : 1, 7, 73, 511
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
765 : 1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765
938 : 1, 2, 7, 14, 67, 134, 469, 938
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 511,720,765,938, is 1.
Now, the common factors can be found like this.
511:7x 73
720:2x 2x 2x 2x 3x 3x 5
765:3x 3x 5x 17
938:2x 7x 67
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 5x 7 = 630
Therefore, the value for common factors is 630.
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 = 264008354400/(1x630)
LCM = 264008354400/630
LCM = 419060880
Thus, we can understand that the LCM of 511,720,765,938 is 419060880.
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FAQs on LCM of 511, 720, 765, 938
1. What is the LCM of 511, 720, 765, 938?
Answer: LCM of 511, 720, 765, 938 is 419060880.
2. How to calculate the LCM of 511, 720, 765, 938?
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 511, 720, 765, 938.
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}.