LCM of 861, 290, 810, 195
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 861, 290, 810, 195 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, 290, 810, 195. So, keep reading to learn more.
Given numbers are 861,290,810,195
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 861,290,810,195 is 87641190.
Find LCM of 861,290,810,195 with Prime Factorization
| 2 | 861, 290, 810, 195 |
| 3 | 861, 145, 405, 195 |
| 5 | 287, 145, 135, 65 |
| 287, 29, 27, 13 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 5 x 287 x 29 x 27 x 13 = 87641190
Therefore, the lowest common multiple of 861,290,810,195 is 87641190.
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 290 x 810 x 195 = 39438535500
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
290 : 1, 2, 5, 10, 29, 58, 145, 290
810 : 1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810
195 : 1, 3, 5, 13, 15, 39, 65, 195
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 861,290,810,195, is 1.
Now, the common factors can be found like this.
861:3x 7x 41
290:2x 5x 29
810:2x 3x 3x 3x 3x 5
195:3x 5x 13
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 3x 5x 5 = 450
Therefore, the value for common factors is 450.
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 = 39438535500/(1x450)
LCM = 39438535500/450
LCM = 87641190
Thus, we can understand that the LCM of 861,290,810,195 is 87641190.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 861, 290, 810, 195
1. What is the LCM of 861, 290, 810, 195?
Answer: LCM of 861, 290, 810, 195 is 87641190.
2. How to calculate the LCM of 861, 290, 810, 195?
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, 290, 810, 195.
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}.