LCM of 579, 721, 840, 126
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 579, 721, 840, 126 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 579, 721, 840, 126. So, keep reading to learn more.
Given numbers are 579,721,840,126
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 579,721,840,126 is 50095080.
Find LCM of 579,721,840,126 with Prime Factorization
| 2 | 579, 721, 840, 126 |
| 3 | 579, 721, 420, 63 |
| 7 | 193, 721, 140, 21 |
| 193, 103, 20, 3 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 7 x 193 x 103 x 20 x 3 = 50095080
Therefore, the lowest common multiple of 579,721,840,126 is 50095080.
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.
579 x 721 x 840 x 126 = 44183860560
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.
579 : 1, 3, 193, 579
721 : 1, 7, 103, 721
840 : 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840
126 : 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 579,721,840,126, is 1.
Now, the common factors can be found like this.
579:3x 193
721:7x 103
840:2x 2x 2x 3x 5x 7
126:2x 3x 3x 7
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 7x 7 = 882
Therefore, the value for common factors is 882.
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 = 44183860560/(1x882)
LCM = 44183860560/882
LCM = 50095080
Thus, we can understand that the LCM of 579,721,840,126 is 50095080.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 579, 721, 840, 126
1. What is the LCM of 579, 721, 840, 126?
Answer: LCM of 579, 721, 840, 126 is 50095080.
2. How to calculate the LCM of 579, 721, 840, 126?
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 579, 721, 840, 126.
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}.