LCM of 128, 861, 939, 702, 819
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 128, 861, 939, 702, 819 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 128, 861, 939, 702, 819. So, keep reading to learn more.
Given numbers are 128,861,939,702,819
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 128,861,939,702,819 is 4035927168.
Find LCM of 128,861,939,702,819 with Prime Factorization
| 2 | 128, 861, 939, 702, 819 |
| 3 | 64, 861, 939, 351, 819 |
| 3 | 64, 287, 313, 117, 273 |
| 7 | 64, 287, 313, 39, 91 |
| 13 | 64, 41, 313, 39, 13 |
| 64, 41, 313, 3, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 3 x 7 x 13 x 64 x 41 x 313 x 3 x 1 = 4035927168
Therefore, the lowest common multiple of 128,861,939,702,819 is 4035927168.
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.
128 x 861 x 939 x 702 x 819 = 59497638310656
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.
128 : 1, 2, 4, 8, 16, 32, 64, 128
861 : 1, 3, 7, 21, 41, 123, 287, 861
939 : 1, 3, 313, 939
702 : 1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 117, 234, 351, 702
819 : 1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 128,861,939,702,819, is 1.
Now, the common factors can be found like this.
128:2x 2x 2x 2x 2x 2x 2
861:3x 7x 41
939:3x 313
702:2x 3x 3x 3x 13
819:3x 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 3x 3x 3x 3x 7x 13 = 14742
Therefore, the value for common factors is 14742.
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 = 59497638310656/(1x14742)
LCM = 59497638310656/14742
LCM = 4035927168
Thus, we can understand that the LCM of 128,861,939,702,819 is 4035927168.
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FAQs on LCM of 128, 861, 939, 702, 819
1. What is the LCM of 128, 861, 939, 702, 819?
Answer: LCM of 128, 861, 939, 702, 819 is 4035927168.
2. How to calculate the LCM of 128, 861, 939, 702, 819?
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 128, 861, 939, 702, 819.
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}.