LCM of 123, 738, 342, 791, 813
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 123, 738, 342, 791, 813 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 123, 738, 342, 791, 813. So, keep reading to learn more.
Given numbers are 123,738,342,791,813
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 123,738,342,791,813 is 3005769942.
Find LCM of 123,738,342,791,813 with Prime Factorization
| 2 | 123, 738, 342, 791, 813 |
| 3 | 123, 369, 171, 791, 813 |
| 3 | 41, 123, 57, 791, 271 |
| 41 | 41, 41, 19, 791, 271 |
| 1, 1, 19, 791, 271 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 3 x 41 x 1 x 1 x 19 x 791 x 271 = 3005769942
Therefore, the lowest common multiple of 123,738,342,791,813 is 3005769942.
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.
123 x 738 x 342 x 791 x 813 = 19964323954764
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.
123 : 1, 3, 41, 123
738 : 1, 2, 3, 6, 9, 18, 41, 82, 123, 246, 369, 738
342 : 1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 342
791 : 1, 7, 113, 791
813 : 1, 3, 271, 813
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 123,738,342,791,813, is 1.
Now, the common factors can be found like this.
123:3x 41
738:2x 3x 3x 41
342:2x 3x 3x 19
791:7x 113
813:3x 271
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3x 3x 3x 3x 41 = 6642
Therefore, the value for common factors is 6642.
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 = 19964323954764/(1x6642)
LCM = 19964323954764/6642
LCM = 3005769942
Thus, we can understand that the LCM of 123,738,342,791,813 is 3005769942.
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FAQs on LCM of 123, 738, 342, 791, 813
1. What is the LCM of 123, 738, 342, 791, 813?
Answer: LCM of 123, 738, 342, 791, 813 is 3005769942.
2. How to calculate the LCM of 123, 738, 342, 791, 813?
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 123, 738, 342, 791, 813.
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}.