LCM of 686, 667, 398, 667
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 686, 667, 398, 667 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, 667, 398, 667. So, keep reading to learn more.
Given numbers are 686,667,398,667
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 686,667,398,667 is 91054838.
Find LCM of 686,667,398,667 with Prime Factorization
| 2 | 686, 667, 398, 667 |
| 23 | 343, 667, 199, 667 |
| 29 | 343, 29, 199, 29 |
| 343, 1, 199, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 23 x 29 x 343 x 1 x 199 x 1 = 91054838
Therefore, the lowest common multiple of 686,667,398,667 is 91054838.
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 667 x 398 x 667 = 121467153892
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
667 : 1, 23, 29, 667
398 : 1, 2, 199, 398
667 : 1, 23, 29, 667
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 686,667,398,667, is 1.
Now, the common factors can be found like this.
686:2x 7x 7x 7
667:23x 29
398:2x 199
667:23x 29
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 23x 29 = 1334
Therefore, the value for common factors is 1334.
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 = 121467153892/(1x1334)
LCM = 121467153892/1334
LCM = 91054838
Thus, we can understand that the LCM of 686,667,398,667 is 91054838.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 686, 667, 398, 667
1. What is the LCM of 686, 667, 398, 667?
Answer: LCM of 686, 667, 398, 667 is 91054838.
2. How to calculate the LCM of 686, 667, 398, 667?
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, 667, 398, 667.
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}.