LCM of 861, 131, 635, 231
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 861, 131, 635, 231 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, 131, 635, 231. So, keep reading to learn more.
Given numbers are 861,131,635,231
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 861,131,635,231 is 787845135.
Find LCM of 861,131,635,231 with Prime Factorization
| 3 | 861, 131, 635, 231 |
| 7 | 287, 131, 635, 77 |
| 41, 131, 635, 11 |
Multiply the prime numbers at the bottom and the left side.
3 x 7 x 41 x 131 x 635 x 11 = 787845135
Therefore, the lowest common multiple of 861,131,635,231 is 787845135.
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 131 x 635 x 231 = 16544747835
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
131 : 1, 131
635 : 1, 5, 127, 635
231 : 1, 3, 7, 11, 21, 33, 77, 231
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 861,131,635,231, is 1.
Now, the common factors can be found like this.
861:3x 7x 41
131:131
635:5x 127
231:3x 7x 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 7 = 21
Therefore, the value for common factors is 21.
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 = 16544747835/(1x21)
LCM = 16544747835/21
LCM = 787845135
Thus, we can understand that the LCM of 861,131,635,231 is 787845135.
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FAQs on LCM of 861, 131, 635, 231
1. What is the LCM of 861, 131, 635, 231?
Answer: LCM of 861, 131, 635, 231 is 787845135.
2. How to calculate the LCM of 861, 131, 635, 231?
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, 131, 635, 231.
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}.