LCM of 886, 861, 780, 657, 421
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 886, 861, 780, 657, 421 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 886, 861, 780, 657, 421. So, keep reading to learn more.
Given numbers are 886,861,780,657,421
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 886,861,780,657,421 is 9143372986020.
Find LCM of 886,861,780,657,421 with Prime Factorization
| 2 | 886, 861, 780, 657, 421 |
| 3 | 443, 861, 390, 657, 421 |
| 443, 287, 130, 219, 421 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 443 x 287 x 130 x 219 x 421 = 9143372986020
Therefore, the lowest common multiple of 886,861,780,657,421 is 9143372986020.
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.
886 x 861 x 780 x 657 x 421 = 164580713748360
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.
886 : 1, 2, 443, 886
861 : 1, 3, 7, 21, 41, 123, 287, 861
780 : 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780
657 : 1, 3, 9, 73, 219, 657
421 : 1, 421
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 886,861,780,657,421, is 1.
Now, the common factors can be found like this.
886:2x 443
861:3x 7x 41
780:2x 2x 3x 5x 13
657:3x 3x 73
421:421
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3x 3 = 18
Therefore, the value for common factors is 18.
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 = 164580713748360/(1x18)
LCM = 164580713748360/18
LCM = 9143372986020
Thus, we can understand that the LCM of 886,861,780,657,421 is 9143372986020.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 886, 861, 780, 657, 421
1. What is the LCM of 886, 861, 780, 657, 421?
Answer: LCM of 886, 861, 780, 657, 421 is 9143372986020.
2. How to calculate the LCM of 886, 861, 780, 657, 421?
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 886, 861, 780, 657, 421.
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}.