LCM of 985, 240, 687, 784
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 985, 240, 687, 784 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 985, 240, 687, 784. So, keep reading to learn more.
Given numbers are 985,240,687,784
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 985,240,687,784 is 530528880.
Find LCM of 985,240,687,784 with Prime Factorization
| 2 | 985, 240, 687, 784 |
| 2 | 985, 120, 687, 392 |
| 2 | 985, 60, 687, 196 |
| 2 | 985, 30, 687, 98 |
| 3 | 985, 15, 687, 49 |
| 5 | 985, 5, 229, 49 |
| 197, 1, 229, 49 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 2 x 3 x 5 x 197 x 1 x 229 x 49 = 530528880
Therefore, the lowest common multiple of 985,240,687,784 is 530528880.
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.
985 x 240 x 687 x 784 = 127326931200
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.
985 : 1, 5, 197, 985
240 : 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240
687 : 1, 3, 229, 687
784 : 1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 985,240,687,784, is 1.
Now, the common factors can be found like this.
985:5x 197
240:2x 2x 2x 2x 3x 5
687:3x 229
784:2x 2x 2x 2x 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 2x 2x 2x 3x 5 = 240
Therefore, the value for common factors is 240.
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 = 127326931200/(1x240)
LCM = 127326931200/240
LCM = 530528880
Thus, we can understand that the LCM of 985,240,687,784 is 530528880.
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FAQs on LCM of 985, 240, 687, 784
1. What is the LCM of 985, 240, 687, 784?
Answer: LCM of 985, 240, 687, 784 is 530528880.
2. How to calculate the LCM of 985, 240, 687, 784?
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 985, 240, 687, 784.
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}.