LCM of 129, 387, 681, 189
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 129, 387, 681, 189 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 129, 387, 681, 189. So, keep reading to learn more.
Given numbers are 129,387,681,189
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 129,387,681,189 is 1844829.
Find LCM of 129,387,681,189 with Prime Factorization
| 3 | 129, 387, 681, 189 |
| 3 | 43, 129, 227, 63 |
| 43 | 43, 43, 227, 21 |
| 1, 1, 227, 21 |
Multiply the prime numbers at the bottom and the left side.
3 x 3 x 43 x 1 x 1 x 227 x 21 = 1844829
Therefore, the lowest common multiple of 129,387,681,189 is 1844829.
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.
129 x 387 x 681 x 189 = 6425539407
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.
129 : 1, 3, 43, 129
387 : 1, 3, 9, 43, 129, 387
681 : 1, 3, 227, 681
189 : 1, 3, 7, 9, 21, 27, 63, 189
3 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 129,387,681,189, is 3.
Now, the common factors can be found like this.
129:3x 43
387:3x 3x 43
681:3x 227
189:3x 3x 3x 7
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 43 = 1161
Therefore, the value for common factors is 1161.
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 = 6425539407/(3x1161)
LCM = 6425539407/3483
LCM = 1844829
Thus, we can understand that the LCM of 129,387,681,189 is 1844829.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 129, 387, 681, 189
1. What is the LCM of 129, 387, 681, 189?
Answer: LCM of 129, 387, 681, 189 is 1844829.
2. How to calculate the LCM of 129, 387, 681, 189?
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 129, 387, 681, 189.
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}.