LCM of 861, 487, 574, 891
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 861, 487, 574, 891 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 861, 487, 574, 891. So, keep reading to learn more.
Given numbers are 861,487,574,891
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 861,487,574,891 is 249068358.
Find LCM of 861,487,574,891 with Prime Factorization
| 3 | 861, 487, 574, 891 |
| 7 | 287, 487, 574, 297 |
| 41 | 41, 487, 82, 297 |
| 1, 487, 2, 297 |
Multiply the prime numbers at the bottom and the left side.
3 x 7 x 41 x 1 x 487 x 2 x 297 = 249068358
Therefore, the lowest common multiple of 861,487,574,891 is 249068358.
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.
861 x 487 x 574 x 891 = 214447856238
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.
861 : 1, 3, 7, 21, 41, 123, 287, 861
487 : 1, 487
574 : 1, 2, 7, 14, 41, 82, 287, 574
891 : 1, 3, 9, 11, 27, 33, 81, 99, 297, 891
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 861,487,574,891, is 1.
Now, the common factors can be found like this.
861:3x 7x 41
487:487
574:2x 7x 41
891:3x 3x 3x 3x 11
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 7x 41 = 861
Therefore, the value for common factors is 861.
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 = 214447856238/(1x861)
LCM = 214447856238/861
LCM = 249068358
Thus, we can understand that the LCM of 861,487,574,891 is 249068358.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 861, 487, 574, 891
1. What is the LCM of 861, 487, 574, 891?
Answer: LCM of 861, 487, 574, 891 is 249068358.
2. How to calculate the LCM of 861, 487, 574, 891?
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 861, 487, 574, 891.
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}.