LCM of 561, 690, 323, 851
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 561, 690, 323, 851 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, 690, 323, 851. So, keep reading to learn more.
Given numbers are 561,690,323,851
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 561,690,323,851 is 90708090.
Find LCM of 561,690,323,851 with Prime Factorization
| 3 | 561, 690, 323, 851 |
| 17 | 187, 230, 323, 851 |
| 23 | 11, 230, 19, 851 |
| 11, 10, 19, 37 |
Multiply the prime numbers at the bottom and the left side.
3 x 17 x 23 x 11 x 10 x 19 x 37 = 90708090
Therefore, the lowest common multiple of 561,690,323,851 is 90708090.
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 690 x 323 x 851 = 106400589570
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
690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
323 : 1, 17, 19, 323
851 : 1, 23, 37, 851
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 561,690,323,851, is 1.
Now, the common factors can be found like this.
561:3x 11x 17
690:2x 3x 5x 23
323:17x 19
851:23x 37
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 17x 23 = 1173
Therefore, the value for common factors is 1173.
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 = 106400589570/(1x1173)
LCM = 106400589570/1173
LCM = 90708090
Thus, we can understand that the LCM of 561,690,323,851 is 90708090.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 561, 690, 323, 851
1. What is the LCM of 561, 690, 323, 851?
Answer: LCM of 561, 690, 323, 851 is 90708090.
2. How to calculate the LCM of 561, 690, 323, 851?
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, 690, 323, 851.
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}.