LCM of 815, 518, 196, 140, 687
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 815, 518, 196, 140, 687 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 815, 518, 196, 140, 687. So, keep reading to learn more.
Given numbers are 815,518,196,140,687
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 815,518,196,140,687 is 4060431060.
Find LCM of 815,518,196,140,687 with Prime Factorization
| 2 | 815, 518, 196, 140, 687 |
| 2 | 815, 259, 98, 70, 687 |
| 5 | 815, 259, 49, 35, 687 |
| 7 | 163, 259, 49, 7, 687 |
| 163, 37, 1, 7, 687 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 5 x 7 x 163 x 37 x 1 x 7 x 687 = 4060431060
Therefore, the lowest common multiple of 815,518,196,140,687 is 4060431060.
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.
815 x 518 x 196 x 140 x 687 = 7958444877600
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.
815 : 1, 5, 163, 815
518 : 1, 2, 7, 14, 37, 74, 259, 518
196 : 1, 2, 4, 7, 14, 28, 49, 98, 196
140 : 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140
687 : 1, 3, 229, 687
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 815,518,196,140,687, is 1.
Now, the common factors can be found like this.
815:5x 163
518:2x 7x 37
196:2x 2x 7x 7
140:2x 2x 5x 7
687:3x 229
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 2x 5x 7x 7 = 1960
Therefore, the value for common factors is 1960.
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 = 7958444877600/(1x1960)
LCM = 7958444877600/1960
LCM = 4060431060
Thus, we can understand that the LCM of 815,518,196,140,687 is 4060431060.
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FAQs on LCM of 815, 518, 196, 140, 687
1. What is the LCM of 815, 518, 196, 140, 687?
Answer: LCM of 815, 518, 196, 140, 687 is 4060431060.
2. How to calculate the LCM of 815, 518, 196, 140, 687?
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 815, 518, 196, 140, 687.
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}.