LCM of 643, 416, 430, 905, 273
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 643, 416, 430, 905, 273 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 643, 416, 430, 905, 273. So, keep reading to learn more.
Given numbers are 643,416,430,905,273
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 643,416,430,905,273 is 218595205920.
Find LCM of 643,416,430,905,273 with Prime Factorization
| 2 | 643, 416, 430, 905, 273 |
| 5 | 643, 208, 215, 905, 273 |
| 13 | 643, 208, 43, 181, 273 |
| 643, 16, 43, 181, 21 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 13 x 643 x 16 x 43 x 181 x 21 = 218595205920
Therefore, the lowest common multiple of 643,416,430,905,273 is 218595205920.
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.
643 x 416 x 430 x 905 x 273 = 28417376769600
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.
643 : 1, 643
416 : 1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416
430 : 1, 2, 5, 10, 43, 86, 215, 430
905 : 1, 5, 181, 905
273 : 1, 3, 7, 13, 21, 39, 91, 273
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 643,416,430,905,273, is 1.
Now, the common factors can be found like this.
643:643
416:2x 2x 2x 2x 2x 13
430:2x 5x 43
905:5x 181
273:3x 7x 13
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 5x 13 = 130
Therefore, the value for common factors is 130.
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 = 28417376769600/(1x130)
LCM = 28417376769600/130
LCM = 218595205920
Thus, we can understand that the LCM of 643,416,430,905,273 is 218595205920.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 643, 416, 430, 905, 273
1. What is the LCM of 643, 416, 430, 905, 273?
Answer: LCM of 643, 416, 430, 905, 273 is 218595205920.
2. How to calculate the LCM of 643, 416, 430, 905, 273?
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 643, 416, 430, 905, 273.
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}.