LCM of 731, 824, 913, 945, 861
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 731, 824, 913, 945, 861 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 731, 824, 913, 945, 861. So, keep reading to learn more.
Given numbers are 731,824,913,945,861
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 731,824,913,945,861 is 21307428089640.
Find LCM of 731,824,913,945,861 with Prime Factorization
| 3 | 731, 824, 913, 945, 861 |
| 7 | 731, 824, 913, 315, 287 |
| 731, 824, 913, 45, 41 |
Multiply the prime numbers at the bottom and the left side.
3 x 7 x 731 x 824 x 913 x 45 x 41 = 21307428089640
Therefore, the lowest common multiple of 731,824,913,945,861 is 21307428089640.
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.
731 x 824 x 913 x 945 x 861 = 447455989882440
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.
731 : 1, 17, 43, 731
824 : 1, 2, 4, 8, 103, 206, 412, 824
913 : 1, 11, 83, 913
945 : 1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945
861 : 1, 3, 7, 21, 41, 123, 287, 861
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 731,824,913,945,861, is 1.
Now, the common factors can be found like this.
731:17x 43
824:2x 2x 2x 103
913:11x 83
945:3x 3x 3x 5x 7
861:3x 7x 41
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 7 = 21
Therefore, the value for common factors is 21.
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 = 447455989882440/(1x21)
LCM = 447455989882440/21
LCM = 21307428089640
Thus, we can understand that the LCM of 731,824,913,945,861 is 21307428089640.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 731, 824, 913, 945, 861
1. What is the LCM of 731, 824, 913, 945, 861?
Answer: LCM of 731, 824, 913, 945, 861 is 21307428089640.
2. How to calculate the LCM of 731, 824, 913, 945, 861?
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 731, 824, 913, 945, 861.
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}.