LCM of 784, 901, 476, 561
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 784, 901, 476, 561 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, 901, 476, 561. So, keep reading to learn more.
Given numbers are 784,901,476,561
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 784,901,476,561 is 23310672.
Find LCM of 784,901,476,561 with Prime Factorization
| 2 | 784, 901, 476, 561 |
| 2 | 392, 901, 238, 561 |
| 7 | 196, 901, 119, 561 |
| 17 | 28, 901, 17, 561 |
| 28, 53, 1, 33 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 7 x 17 x 28 x 53 x 1 x 33 = 23310672
Therefore, the lowest common multiple of 784,901,476,561 is 23310672.
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 901 x 476 x 561 = 188629957824
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
901 : 1, 17, 53, 901
476 : 1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476
561 : 1, 3, 11, 17, 33, 51, 187, 561
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 784,901,476,561, is 1.
Now, the common factors can be found like this.
784:2x 2x 2x 2x 7x 7
901:17x 53
476:2x 2x 7x 17
561:3x 11x 17
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 7x 17x 17 = 8092
Therefore, the value for common factors is 8092.
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 = 188629957824/(1x8092)
LCM = 188629957824/8092
LCM = 23310672
Thus, we can understand that the LCM of 784,901,476,561 is 23310672.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 784, 901, 476, 561
1. What is the LCM of 784, 901, 476, 561?
Answer: LCM of 784, 901, 476, 561 is 23310672.
2. How to calculate the LCM of 784, 901, 476, 561?
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, 901, 476, 561.
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}.