LCM of 168, 784, 663, 831
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 168, 784, 663, 831 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 168, 784, 663, 831. So, keep reading to learn more.
Given numbers are 168,784,663,831
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 168,784,663,831 is 143982384.
Find LCM of 168,784,663,831 with Prime Factorization
| 2 | 168, 784, 663, 831 |
| 2 | 84, 392, 663, 831 |
| 2 | 42, 196, 663, 831 |
| 3 | 21, 98, 663, 831 |
| 7 | 7, 98, 221, 277 |
| 1, 14, 221, 277 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 3 x 7 x 1 x 14 x 221 x 277 = 143982384
Therefore, the lowest common multiple of 168,784,663,831 is 143982384.
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.
168 x 784 x 663 x 831 = 72567121536
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.
168 : 1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168
784 : 1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784
663 : 1, 3, 13, 17, 39, 51, 221, 663
831 : 1, 3, 277, 831
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 168,784,663,831, is 1.
Now, the common factors can be found like this.
168:2x 2x 2x 3x 7
784:2x 2x 2x 2x 7x 7
663:3x 13x 17
831:3x 277
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 3x 3x 7 = 504
Therefore, the value for common factors is 504.
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 = 72567121536/(1x504)
LCM = 72567121536/504
LCM = 143982384
Thus, we can understand that the LCM of 168,784,663,831 is 143982384.
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FAQs on LCM of 168, 784, 663, 831
1. What is the LCM of 168, 784, 663, 831?
Answer: LCM of 168, 784, 663, 831 is 143982384.
2. How to calculate the LCM of 168, 784, 663, 831?
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 168, 784, 663, 831.
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}.