LCM of 784, 770, 969, 361
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 784, 770, 969, 361 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, 770, 969, 361. So, keep reading to learn more.
Given numbers are 784,770,969,361
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 784,770,969,361 is 793882320.
Find LCM of 784,770,969,361 with Prime Factorization
| 2 | 784, 770, 969, 361 |
| 7 | 392, 385, 969, 361 |
| 19 | 56, 55, 969, 361 |
| 56, 55, 51, 19 |
Multiply the prime numbers at the bottom and the left side.
2 x 7 x 19 x 56 x 55 x 51 x 19 = 793882320
Therefore, the lowest common multiple of 784,770,969,361 is 793882320.
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 770 x 969 x 361 = 211172697120
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
770 : 1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770
969 : 1, 3, 17, 19, 51, 57, 323, 969
361 : 1, 19, 361
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 784,770,969,361, is 1.
Now, the common factors can be found like this.
784:2x 2x 2x 2x 7x 7
770:2x 5x 7x 11
969:3x 17x 19
361:19x 19
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 7x 19 = 266
Therefore, the value for common factors is 266.
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 = 211172697120/(1x266)
LCM = 211172697120/266
LCM = 793882320
Thus, we can understand that the LCM of 784,770,969,361 is 793882320.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 784, 770, 969, 361
1. What is the LCM of 784, 770, 969, 361?
Answer: LCM of 784, 770, 969, 361 is 793882320.
2. How to calculate the LCM of 784, 770, 969, 361?
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, 770, 969, 361.
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}.