LCM of 891, 171, 429, 989
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 891, 171, 429, 989 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 891, 171, 429, 989. So, keep reading to learn more.
Given numbers are 891,171,429,989
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 891,171,429,989 is 217656153.
Find LCM of 891,171,429,989 with Prime Factorization
| 3 | 891, 171, 429, 989 |
| 3 | 297, 57, 143, 989 |
| 11 | 99, 19, 143, 989 |
| 9, 19, 13, 989 |
Multiply the prime numbers at the bottom and the left side.
3 x 3 x 11 x 9 x 19 x 13 x 989 = 217656153
Therefore, the lowest common multiple of 891,171,429,989 is 217656153.
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.
891 x 171 x 429 x 989 = 64643877441
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.
891 : 1, 3, 9, 11, 27, 33, 81, 99, 297, 891
171 : 1, 3, 9, 19, 57, 171
429 : 1, 3, 11, 13, 33, 39, 143, 429
989 : 1, 23, 43, 989
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 891,171,429,989, is 1.
Now, the common factors can be found like this.
891:3x 3x 3x 3x 11
171:3x 3x 19
429:3x 11x 13
989:23x 43
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 3x 11 = 297
Therefore, the value for common factors is 297.
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 = 64643877441/(1x297)
LCM = 64643877441/297
LCM = 217656153
Thus, we can understand that the LCM of 891,171,429,989 is 217656153.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 891, 171, 429, 989
1. What is the LCM of 891, 171, 429, 989?
Answer: LCM of 891, 171, 429, 989 is 217656153.
2. How to calculate the LCM of 891, 171, 429, 989?
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 891, 171, 429, 989.
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}.