LCM of 720, 815, 320, 519
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 720, 815, 320, 519 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, 815, 320, 519. So, keep reading to learn more.
Given numbers are 720,815,320,519
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 720,815,320,519 is 81213120.
Find LCM of 720,815,320,519 with Prime Factorization
| 2 | 720, 815, 320, 519 |
| 2 | 360, 815, 160, 519 |
| 2 | 180, 815, 80, 519 |
| 2 | 90, 815, 40, 519 |
| 3 | 45, 815, 20, 519 |
| 5 | 15, 815, 20, 173 |
| 3, 163, 4, 173 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 2 x 3 x 5 x 3 x 163 x 4 x 173 = 81213120
Therefore, the lowest common multiple of 720,815,320,519 is 81213120.
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 815 x 320 x 519 = 97455744000
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
815 : 1, 5, 163, 815
320 : 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320
519 : 1, 3, 173, 519
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 720,815,320,519, is 1.
Now, the common factors can be found like this.
720:2x 2x 2x 2x 3x 3x 5
815:5x 163
320:2x 2x 2x 2x 2x 2x 5
519:3x 173
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 2x 3x 5x 5 = 1200
Therefore, the value for common factors is 1200.
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 = 97455744000/(1x1200)
LCM = 97455744000/1200
LCM = 81213120
Thus, we can understand that the LCM of 720,815,320,519 is 81213120.
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FAQs on LCM of 720, 815, 320, 519
1. What is the LCM of 720, 815, 320, 519?
Answer: LCM of 720, 815, 320, 519 is 81213120.
2. How to calculate the LCM of 720, 815, 320, 519?
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, 815, 320, 519.
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}.