LCM of 561, 718, 646, 123, 210
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 561, 718, 646, 123, 210 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 561, 718, 646, 123, 210. So, keep reading to learn more.
Given numbers are 561,718,646,123,210
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 561,718,646,123,210 is 10982287470.
Find LCM of 561,718,646,123,210 with Prime Factorization
| 2 | 561, 718, 646, 123, 210 |
| 3 | 561, 359, 323, 123, 105 |
| 17 | 187, 359, 323, 41, 35 |
| 11, 359, 19, 41, 35 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 17 x 11 x 359 x 19 x 41 x 35 = 10982287470
Therefore, the lowest common multiple of 561,718,646,123,210 is 10982287470.
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.
561 x 718 x 646 x 123 x 210 = 6721159931640
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.
561 : 1, 3, 11, 17, 33, 51, 187, 561
718 : 1, 2, 359, 718
646 : 1, 2, 17, 19, 34, 38, 323, 646
123 : 1, 3, 41, 123
210 : 1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 561,718,646,123,210, is 1.
Now, the common factors can be found like this.
561:3x 11x 17
718:2x 359
646:2x 17x 19
123:3x 41
210:2x 3x 5x 7
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 3x 3x 17 = 612
Therefore, the value for common factors is 612.
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 = 6721159931640/(1x612)
LCM = 6721159931640/612
LCM = 10982287470
Thus, we can understand that the LCM of 561,718,646,123,210 is 10982287470.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 561, 718, 646, 123, 210
1. What is the LCM of 561, 718, 646, 123, 210?
Answer: LCM of 561, 718, 646, 123, 210 is 10982287470.
2. How to calculate the LCM of 561, 718, 646, 123, 210?
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 561, 718, 646, 123, 210.
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}.