LCM of 721, 110, 434, 220
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 721, 110, 434, 220 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 721, 110, 434, 220. So, keep reading to learn more.
Given numbers are 721,110,434,220
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 721,110,434,220 is 4917220.
Find LCM of 721,110,434,220 with Prime Factorization
| 2 | 721, 110, 434, 220 |
| 5 | 721, 55, 217, 110 |
| 7 | 721, 11, 217, 22 |
| 11 | 103, 11, 31, 22 |
| 103, 1, 31, 2 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 7 x 11 x 103 x 1 x 31 x 2 = 4917220
Therefore, the lowest common multiple of 721,110,434,220 is 4917220.
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.
721 x 110 x 434 x 220 = 7572518800
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.
721 : 1, 7, 103, 721
110 : 1, 2, 5, 10, 11, 22, 55, 110
434 : 1, 2, 7, 14, 31, 62, 217, 434
220 : 1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 721,110,434,220, is 1.
Now, the common factors can be found like this.
721:7x 103
110:2x 5x 11
434:2x 7x 31
220:2x 2x 5x 11
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 2x 5x 7x 11 = 1540
Therefore, the value for common factors is 1540.
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 = 7572518800/(1x1540)
LCM = 7572518800/1540
LCM = 4917220
Thus, we can understand that the LCM of 721,110,434,220 is 4917220.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 721, 110, 434, 220
1. What is the LCM of 721, 110, 434, 220?
Answer: LCM of 721, 110, 434, 220 is 4917220.
2. How to calculate the LCM of 721, 110, 434, 220?
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 721, 110, 434, 220.
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}.