LCM of 7, 784, 579, 980
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 7, 784, 579, 980 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 7, 784, 579, 980. So, keep reading to learn more.
Given numbers are 7,784,579,980
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 7,784,579,980 is 2269680.
Find LCM of 7,784,579,980 with Prime Factorization
| 2 | 7, 784, 579, 980 |
| 2 | 7, 392, 579, 490 |
| 7 | 7, 196, 579, 245 |
| 7 | 1, 28, 579, 35 |
| 1, 4, 579, 5 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 7 x 7 x 1 x 4 x 579 x 5 = 2269680
Therefore, the lowest common multiple of 7,784,579,980 is 2269680.
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.
7 x 784 x 579 x 980 = 3114000960
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.
7 : 1, 7
784 : 1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784
579 : 1, 3, 193, 579
980 : 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 7,784,579,980, is 1.
Now, the common factors can be found like this.
7:7
784:2x 2x 2x 2x 7x 7
579:3x 193
980:2x 2x 5x 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 7x 7x 7 = 1372
Therefore, the value for common factors is 1372.
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 = 3114000960/(1x1372)
LCM = 3114000960/1372
LCM = 2269680
Thus, we can understand that the LCM of 7,784,579,980 is 2269680.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 7, 784, 579, 980
1. What is the LCM of 7, 784, 579, 980?
Answer: LCM of 7, 784, 579, 980 is 2269680.
2. How to calculate the LCM of 7, 784, 579, 980?
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 7, 784, 579, 980.
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}.