LCM of 249, 720, 996, 831, 390
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 249, 720, 996, 831, 390 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 249, 720, 996, 831, 390. So, keep reading to learn more.
Given numbers are 249,720,996,831,390
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 249,720,996,831,390 is 215195760.
Find LCM of 249,720,996,831,390 with Prime Factorization
| 2 | 249, 720, 996, 831, 390 |
| 2 | 249, 360, 498, 831, 195 |
| 3 | 249, 180, 249, 831, 195 |
| 5 | 83, 60, 83, 277, 65 |
| 83 | 83, 12, 83, 277, 13 |
| 1, 12, 1, 277, 13 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 5 x 83 x 1 x 12 x 1 x 277 x 13 = 215195760
Therefore, the lowest common multiple of 249,720,996,831,390 is 215195760.
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.
249 x 720 x 996 x 831 x 390 = 57870443779200
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.
249 : 1, 3, 83, 249
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
996 : 1, 2, 3, 4, 6, 12, 83, 166, 249, 332, 498, 996
831 : 1, 3, 277, 831
390 : 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390
3 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 249,720,996,831,390, is 3.
Now, the common factors can be found like this.
249:3x 83
720:2x 2x 2x 2x 3x 3x 5
996:2x 2x 3x 83
831:3x 277
390:2x 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 3x 3x 5x 83 = 89640
Therefore, the value for common factors is 89640.
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 = 57870443779200/(3x89640)
LCM = 57870443779200/268920
LCM = 215195760
Thus, we can understand that the LCM of 249,720,996,831,390 is 215195760.
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FAQs on LCM of 249, 720, 996, 831, 390
1. What is the LCM of 249, 720, 996, 831, 390?
Answer: LCM of 249, 720, 996, 831, 390 is 215195760.
2. How to calculate the LCM of 249, 720, 996, 831, 390?
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 249, 720, 996, 831, 390.
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}.