LCM of 421, 786, 721, 979, 553
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 421, 786, 721, 979, 553 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 421, 786, 721, 979, 553. So, keep reading to learn more.
Given numbers are 421,786,721,979,553
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 421,786,721,979,553 is 18452265282066.
Find LCM of 421,786,721,979,553 with Prime Factorization
| 7 | 421, 786, 721, 979, 553 |
| 421, 786, 103, 979, 79 |
Multiply the prime numbers at the bottom and the left side.
7 x 421 x 786 x 103 x 979 x 79 = 18452265282066
Therefore, the lowest common multiple of 421,786,721,979,553 is 18452265282066.
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.
421 x 786 x 721 x 979 x 553 = 129165856974462
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.
421 : 1, 421
786 : 1, 2, 3, 6, 131, 262, 393, 786
721 : 1, 7, 103, 721
979 : 1, 11, 89, 979
553 : 1, 7, 79, 553
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 421,786,721,979,553, is 1.
Now, the common factors can be found like this.
421:421
786:2x 3x 131
721:7x 103
979:11x 89
553:7x 79
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
7 = 7
Therefore, the value for common factors is 7.
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 = 129165856974462/(1x7)
LCM = 129165856974462/7
LCM = 18452265282066
Thus, we can understand that the LCM of 421,786,721,979,553 is 18452265282066.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 421, 786, 721, 979, 553
1. What is the LCM of 421, 786, 721, 979, 553?
Answer: LCM of 421, 786, 721, 979, 553 is 18452265282066.
2. How to calculate the LCM of 421, 786, 721, 979, 553?
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 421, 786, 721, 979, 553.
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}.