LCM of 779, 451, 990, 921
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 779, 451, 990, 921 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 779, 451, 990, 921. So, keep reading to learn more.
Given numbers are 779,451,990,921
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 779,451,990,921 is 236761470.
Find LCM of 779,451,990,921 with Prime Factorization
| 3 | 779, 451, 990, 921 |
| 11 | 779, 451, 330, 307 |
| 41 | 779, 41, 30, 307 |
| 19, 1, 30, 307 |
Multiply the prime numbers at the bottom and the left side.
3 x 11 x 41 x 19 x 1 x 30 x 307 = 236761470
Therefore, the lowest common multiple of 779,451,990,921 is 236761470.
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.
779 x 451 x 990 x 921 = 320338268910
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.
779 : 1, 19, 41, 779
451 : 1, 11, 41, 451
990 : 1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990
921 : 1, 3, 307, 921
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 779,451,990,921, is 1.
Now, the common factors can be found like this.
779:19x 41
451:11x 41
990:2x 3x 3x 5x 11
921:3x 307
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 11x 41 = 1353
Therefore, the value for common factors is 1353.
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 = 320338268910/(1x1353)
LCM = 320338268910/1353
LCM = 236761470
Thus, we can understand that the LCM of 779,451,990,921 is 236761470.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 779, 451, 990, 921
1. What is the LCM of 779, 451, 990, 921?
Answer: LCM of 779, 451, 990, 921 is 236761470.
2. How to calculate the LCM of 779, 451, 990, 921?
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 779, 451, 990, 921.
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}.