LCM of 391, 819, 687, 867
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 391, 819, 687, 867 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 391, 819, 687, 867. So, keep reading to learn more.
Given numbers are 391,819,687,867
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 391,819,687,867 is 1246651497.
Find LCM of 391,819,687,867 with Prime Factorization
| 3 | 391, 819, 687, 867 |
| 17 | 391, 273, 229, 289 |
| 23, 273, 229, 17 |
Multiply the prime numbers at the bottom and the left side.
3 x 17 x 23 x 273 x 229 x 17 = 1246651497
Therefore, the lowest common multiple of 391,819,687,867 is 1246651497.
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.
391 x 819 x 687 x 867 = 190737679041
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.
391 : 1, 17, 23, 391
819 : 1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819
687 : 1, 3, 229, 687
867 : 1, 3, 17, 51, 289, 867
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 391,819,687,867, is 1.
Now, the common factors can be found like this.
391:17x 23
819:3x 3x 7x 13
687:3x 229
867:3x 17x 17
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 3x 17 = 153
Therefore, the value for common factors is 153.
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 = 190737679041/(1x153)
LCM = 190737679041/153
LCM = 1246651497
Thus, we can understand that the LCM of 391,819,687,867 is 1246651497.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 391, 819, 687, 867
1. What is the LCM of 391, 819, 687, 867?
Answer: LCM of 391, 819, 687, 867 is 1246651497.
2. How to calculate the LCM of 391, 819, 687, 867?
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 391, 819, 687, 867.
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}.