LCM of 818, 660, 861, 410
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 818, 660, 861, 410 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 818, 660, 861, 410. So, keep reading to learn more.
Given numbers are 818,660,861,410
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 818,660,861,410 is 77472780.
Find LCM of 818,660,861,410 with Prime Factorization
| 2 | 818, 660, 861, 410 |
| 3 | 409, 330, 861, 205 |
| 5 | 409, 110, 287, 205 |
| 41 | 409, 22, 287, 41 |
| 409, 22, 7, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 5 x 41 x 409 x 22 x 7 x 1 = 77472780
Therefore, the lowest common multiple of 818,660,861,410 is 77472780.
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.
818 x 660 x 861 x 410 = 190583038800
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.
818 : 1, 2, 409, 818
660 : 1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660
861 : 1, 3, 7, 21, 41, 123, 287, 861
410 : 1, 2, 5, 10, 41, 82, 205, 410
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 818,660,861,410, is 1.
Now, the common factors can be found like this.
818:2x 409
660:2x 2x 3x 5x 11
861:3x 7x 41
410:2x 5x 41
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 5x 41 = 2460
Therefore, the value for common factors is 2460.
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 = 190583038800/(1x2460)
LCM = 190583038800/2460
LCM = 77472780
Thus, we can understand that the LCM of 818,660,861,410 is 77472780.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 818, 660, 861, 410
1. What is the LCM of 818, 660, 861, 410?
Answer: LCM of 818, 660, 861, 410 is 77472780.
2. How to calculate the LCM of 818, 660, 861, 410?
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 818, 660, 861, 410.
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}.