LCM of 685, 538, 178, 979
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 685, 538, 178, 979 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 685, 538, 178, 979. So, keep reading to learn more.
Given numbers are 685,538,178,979
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 685,538,178,979 is 360790870.
Find LCM of 685,538,178,979 with Prime Factorization
| 2 | 685, 538, 178, 979 |
| 89 | 685, 269, 89, 979 |
| 685, 269, 1, 11 |
Multiply the prime numbers at the bottom and the left side.
2 x 89 x 685 x 269 x 1 x 11 = 360790870
Therefore, the lowest common multiple of 685,538,178,979 is 360790870.
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.
685 x 538 x 178 x 979 = 64220774860
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.
685 : 1, 5, 137, 685
538 : 1, 2, 269, 538
178 : 1, 2, 89, 178
979 : 1, 11, 89, 979
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 685,538,178,979, is 1.
Now, the common factors can be found like this.
685:5x 137
538:2x 269
178:2x 89
979:11x 89
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 89 = 178
Therefore, the value for common factors is 178.
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 = 64220774860/(1x178)
LCM = 64220774860/178
LCM = 360790870
Thus, we can understand that the LCM of 685,538,178,979 is 360790870.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 685, 538, 178, 979
1. What is the LCM of 685, 538, 178, 979?
Answer: LCM of 685, 538, 178, 979 is 360790870.
2. How to calculate the LCM of 685, 538, 178, 979?
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 685, 538, 178, 979.
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}.