LCM of 731, 245, 645, 841
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 731, 245, 645, 841 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, 245, 645, 841. So, keep reading to learn more.
Given numbers are 731,245,645,841
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 731,245,645,841 is 451856685.
Find LCM of 731,245,645,841 with Prime Factorization
| 5 | 731, 245, 645, 841 |
| 43 | 731, 49, 129, 841 |
| 17, 49, 3, 841 |
Multiply the prime numbers at the bottom and the left side.
5 x 43 x 17 x 49 x 3 x 841 = 451856685
Therefore, the lowest common multiple of 731,245,645,841 is 451856685.
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 245 x 645 x 841 = 97149187275
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
245 : 1, 5, 7, 35, 49, 245
645 : 1, 3, 5, 15, 43, 129, 215, 645
841 : 1, 29, 841
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 731,245,645,841, is 1.
Now, the common factors can be found like this.
731:17x 43
245:5x 7x 7
645:3x 5x 43
841:29x 29
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
5x 43 = 215
Therefore, the value for common factors is 215.
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 = 97149187275/(1x215)
LCM = 97149187275/215
LCM = 451856685
Thus, we can understand that the LCM of 731,245,645,841 is 451856685.
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, 245, 645, 841
1. What is the LCM of 731, 245, 645, 841?
Answer: LCM of 731, 245, 645, 841 is 451856685.
2. How to calculate the LCM of 731, 245, 645, 841?
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, 245, 645, 841.
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}.