LCM of 686, 831, 418, 554
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 686, 831, 418, 554 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 686, 831, 418, 554. So, keep reading to learn more.
Given numbers are 686,831,418,554
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 686,831,418,554 is 119143794.
Find LCM of 686,831,418,554 with Prime Factorization
| 2 | 686, 831, 418, 554 |
| 277 | 343, 831, 209, 277 |
| 343, 3, 209, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 277 x 343 x 3 x 209 x 1 = 119143794
Therefore, the lowest common multiple of 686,831,418,554 is 119143794.
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.
686 x 831 x 418 x 554 = 132011323752
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.
686 : 1, 2, 7, 14, 49, 98, 343, 686
831 : 1, 3, 277, 831
418 : 1, 2, 11, 19, 22, 38, 209, 418
554 : 1, 2, 277, 554
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 686,831,418,554, is 1.
Now, the common factors can be found like this.
686:2x 7x 7x 7
831:3x 277
418:2x 11x 19
554:2x 277
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 2x 277 = 1108
Therefore, the value for common factors is 1108.
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 = 132011323752/(1x1108)
LCM = 132011323752/1108
LCM = 119143794
Thus, we can understand that the LCM of 686,831,418,554 is 119143794.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 686, 831, 418, 554
1. What is the LCM of 686, 831, 418, 554?
Answer: LCM of 686, 831, 418, 554 is 119143794.
2. How to calculate the LCM of 686, 831, 418, 554?
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 686, 831, 418, 554.
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}.