LCM of 658, 394, 688, 814, 784
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 658, 394, 688, 814, 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 658, 394, 688, 814, 784. So, keep reading to learn more.
Given numbers are 658,394,688,814,784
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 658,394,688,814,784 is 127040739056.
Find LCM of 658,394,688,814,784 with Prime Factorization
| 2 | 658, 394, 688, 814, 784 |
| 2 | 329, 197, 344, 407, 392 |
| 2 | 329, 197, 172, 407, 196 |
| 2 | 329, 197, 86, 407, 98 |
| 7 | 329, 197, 43, 407, 49 |
| 47, 197, 43, 407, 7 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 2 x 7 x 47 x 197 x 43 x 407 x 7 = 127040739056
Therefore, the lowest common multiple of 658,394,688,814,784 is 127040739056.
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.
658 x 394 x 688 x 814 x 784 = 113828502194176
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.
658 : 1, 2, 7, 14, 47, 94, 329, 658
394 : 1, 2, 197, 394
688 : 1, 2, 4, 8, 16, 43, 86, 172, 344, 688
814 : 1, 2, 11, 22, 37, 74, 407, 814
784 : 1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784
2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 658,394,688,814,784, is 2.
Now, the common factors can be found like this.
658:2x 7x 47
394:2x 197
688:2x 2x 2x 2x 43
814:2x 11x 37
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 2x 2x 7 = 448
Therefore, the value for common factors is 448.
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 = 113828502194176/(2x448)
LCM = 113828502194176/896
LCM = 127040739056
Thus, we can understand that the LCM of 658,394,688,814,784 is 127040739056.
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FAQs on LCM of 658, 394, 688, 814, 784
1. What is the LCM of 658, 394, 688, 814, 784?
Answer: LCM of 658, 394, 688, 814, 784 is 127040739056.
2. How to calculate the LCM of 658, 394, 688, 814, 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 658, 394, 688, 814, 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}.