LCM of 823, 539, 840, 940
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 823, 539, 840, 940 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 823, 539, 840, 940. So, keep reading to learn more.
Given numbers are 823,539,840,940
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 823,539,840,940 is 2501887080.
Find LCM of 823,539,840,940 with Prime Factorization
| 2 | 823, 539, 840, 940 |
| 2 | 823, 539, 420, 470 |
| 5 | 823, 539, 210, 235 |
| 7 | 823, 539, 42, 47 |
| 823, 77, 6, 47 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 5 x 7 x 823 x 77 x 6 x 47 = 2501887080
Therefore, the lowest common multiple of 823,539,840,940 is 2501887080.
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.
823 x 539 x 840 x 940 = 350264191200
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.
823 : 1, 823
539 : 1, 7, 11, 49, 77, 539
840 : 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840
940 : 1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 823,539,840,940, is 1.
Now, the common factors can be found like this.
823:823
539:7x 7x 11
840:2x 2x 2x 3x 5x 7
940:2x 2x 5x 47
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 5x 7 = 140
Therefore, the value for common factors is 140.
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 = 350264191200/(1x140)
LCM = 350264191200/140
LCM = 2501887080
Thus, we can understand that the LCM of 823,539,840,940 is 2501887080.
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FAQs on LCM of 823, 539, 840, 940
1. What is the LCM of 823, 539, 840, 940?
Answer: LCM of 823, 539, 840, 940 is 2501887080.
2. How to calculate the LCM of 823, 539, 840, 940?
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 823, 539, 840, 940.
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}.