LCM of 428, 346, 321, 647, 865
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 428, 346, 321, 647, 865 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 428, 346, 321, 647, 865. So, keep reading to learn more.
Given numbers are 428,346,321,647,865
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 428,346,321,647,865 is 718597020.
Find LCM of 428,346,321,647,865 with Prime Factorization
| 2 | 428, 346, 321, 647, 865 |
| 107 | 214, 173, 321, 647, 865 |
| 173 | 2, 173, 3, 647, 865 |
| 2, 1, 3, 647, 5 |
Multiply the prime numbers at the bottom and the left side.
2 x 107 x 173 x 2 x 1 x 3 x 647 x 5 = 718597020
Therefore, the lowest common multiple of 428,346,321,647,865 is 718597020.
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.
428 x 346 x 321 x 647 x 865 = 26603898874440
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.
428 : 1, 2, 4, 107, 214, 428
346 : 1, 2, 173, 346
321 : 1, 3, 107, 321
647 : 1, 647
865 : 1, 5, 173, 865
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 428,346,321,647,865, is 1.
Now, the common factors can be found like this.
428:2x 2x 107
346:2x 173
321:3x 107
647:647
865:5x 173
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 107x 173 = 37022
Therefore, the value for common factors is 37022.
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 = 26603898874440/(1x37022)
LCM = 26603898874440/37022
LCM = 718597020
Thus, we can understand that the LCM of 428,346,321,647,865 is 718597020.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 428, 346, 321, 647, 865
1. What is the LCM of 428, 346, 321, 647, 865?
Answer: LCM of 428, 346, 321, 647, 865 is 718597020.
2. How to calculate the LCM of 428, 346, 321, 647, 865?
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 428, 346, 321, 647, 865.
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}.