LCM of 687, 281, 917, 621, 783
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 687, 281, 917, 621, 783 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 687, 281, 917, 621, 783. So, keep reading to learn more.
Given numbers are 687,281,917,621,783
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 687,281,917,621,783 is 1062675666297.
Find LCM of 687,281,917,621,783 with Prime Factorization
| 3 | 687, 281, 917, 621, 783 |
| 3 | 229, 281, 917, 207, 261 |
| 3 | 229, 281, 917, 69, 87 |
| 229, 281, 917, 23, 29 |
Multiply the prime numbers at the bottom and the left side.
3 x 3 x 3 x 229 x 281 x 917 x 23 x 29 = 1062675666297
Therefore, the lowest common multiple of 687,281,917,621,783 is 1062675666297.
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.
687 x 281 x 917 x 621 x 783 = 86076728970057
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.
687 : 1, 3, 229, 687
281 : 1, 281
917 : 1, 7, 131, 917
621 : 1, 3, 9, 23, 27, 69, 207, 621
783 : 1, 3, 9, 27, 29, 87, 261, 783
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 687,281,917,621,783, is 1.
Now, the common factors can be found like this.
687:3x 229
281:281
917:7x 131
621:3x 3x 3x 23
783:3x 3x 3x 29
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 3x 3x 3 = 81
Therefore, the value for common factors is 81.
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 = 86076728970057/(1x81)
LCM = 86076728970057/81
LCM = 1062675666297
Thus, we can understand that the LCM of 687,281,917,621,783 is 1062675666297.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 687, 281, 917, 621, 783
1. What is the LCM of 687, 281, 917, 621, 783?
Answer: LCM of 687, 281, 917, 621, 783 is 1062675666297.
2. How to calculate the LCM of 687, 281, 917, 621, 783?
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 687, 281, 917, 621, 783.
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}.