LCM of 561, 121, 458, 580
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 561, 121, 458, 580 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 561, 121, 458, 580. So, keep reading to learn more.
Given numbers are 561,121,458,580
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 561,121,458,580 is 819632220.
Find LCM of 561,121,458,580 with Prime Factorization
| 2 | 561, 121, 458, 580 |
| 11 | 561, 121, 229, 290 |
| 51, 11, 229, 290 |
Multiply the prime numbers at the bottom and the left side.
2 x 11 x 51 x 11 x 229 x 290 = 819632220
Therefore, the lowest common multiple of 561,121,458,580 is 819632220.
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.
561 x 121 x 458 x 580 = 18031908840
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.
561 : 1, 3, 11, 17, 33, 51, 187, 561
121 : 1, 11, 121
458 : 1, 2, 229, 458
580 : 1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 561,121,458,580, is 1.
Now, the common factors can be found like this.
561:3x 11x 17
121:11x 11
458:2x 229
580:2x 2x 5x 29
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 11 = 22
Therefore, the value for common factors is 22.
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 = 18031908840/(1x22)
LCM = 18031908840/22
LCM = 819632220
Thus, we can understand that the LCM of 561,121,458,580 is 819632220.
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FAQs on LCM of 561, 121, 458, 580
1. What is the LCM of 561, 121, 458, 580?
Answer: LCM of 561, 121, 458, 580 is 819632220.
2. How to calculate the LCM of 561, 121, 458, 580?
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 561, 121, 458, 580.
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}.