LCM of 678, 855, 979, 187, 686
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 678, 855, 979, 187, 686 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 678, 855, 979, 187, 686. So, keep reading to learn more.
Given numbers are 678,855,979,187,686
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 678,855,979,187,686 is 1103062923270.
Find LCM of 678,855,979,187,686 with Prime Factorization
| 2 | 678, 855, 979, 187, 686 |
| 3 | 339, 855, 979, 187, 343 |
| 11 | 113, 285, 979, 187, 343 |
| 113, 285, 89, 17, 343 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 11 x 113 x 285 x 89 x 17 x 343 = 1103062923270
Therefore, the lowest common multiple of 678,855,979,187,686 is 1103062923270.
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.
678 x 855 x 979 x 187 x 686 = 72802152935820
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.
678 : 1, 2, 3, 6, 113, 226, 339, 678
855 : 1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855
979 : 1, 11, 89, 979
187 : 1, 11, 17, 187
686 : 1, 2, 7, 14, 49, 98, 343, 686
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 678,855,979,187,686, is 1.
Now, the common factors can be found like this.
678:2x 3x 113
855:3x 3x 5x 19
979:11x 89
187:11x 17
686:2x 7x 7x 7
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 11 = 66
Therefore, the value for common factors is 66.
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 = 72802152935820/(1x66)
LCM = 72802152935820/66
LCM = 1103062923270
Thus, we can understand that the LCM of 678,855,979,187,686 is 1103062923270.
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FAQs on LCM of 678, 855, 979, 187, 686
1. What is the LCM of 678, 855, 979, 187, 686?
Answer: LCM of 678, 855, 979, 187, 686 is 1103062923270.
2. How to calculate the LCM of 678, 855, 979, 187, 686?
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 678, 855, 979, 187, 686.
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}.