LCM of 784, 747, 664, 521
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 784, 747, 664, 521 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 784, 747, 664, 521. So, keep reading to learn more.
Given numbers are 784,747,664,521
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 784,747,664,521 is 305122608.
Find LCM of 784,747,664,521 with Prime Factorization
| 2 | 784, 747, 664, 521 |
| 2 | 392, 747, 332, 521 |
| 2 | 196, 747, 166, 521 |
| 83 | 98, 747, 83, 521 |
| 98, 9, 1, 521 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 83 x 98 x 9 x 1 x 521 = 305122608
Therefore, the lowest common multiple of 784,747,664,521 is 305122608.
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.
784 x 747 x 664 x 521 = 202601411712
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.
784 : 1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784
747 : 1, 3, 9, 83, 249, 747
664 : 1, 2, 4, 8, 83, 166, 332, 664
521 : 1, 521
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 784,747,664,521, is 1.
Now, the common factors can be found like this.
784:2x 2x 2x 2x 7x 7
747:3x 3x 83
664:2x 2x 2x 83
521:521
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 83 = 664
Therefore, the value for common factors is 664.
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 = 202601411712/(1x664)
LCM = 202601411712/664
LCM = 305122608
Thus, we can understand that the LCM of 784,747,664,521 is 305122608.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 784, 747, 664, 521
1. What is the LCM of 784, 747, 664, 521?
Answer: LCM of 784, 747, 664, 521 is 305122608.
2. How to calculate the LCM of 784, 747, 664, 521?
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 784, 747, 664, 521.
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}.