LCM of 859, 689, 390, 728
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 859, 689, 390, 728 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 859, 689, 390, 728. So, keep reading to learn more.
Given numbers are 859,689,390,728
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 859,689,390,728 is 497154840.
Find LCM of 859,689,390,728 with Prime Factorization
| 2 | 859, 689, 390, 728 |
| 13 | 859, 689, 195, 364 |
| 859, 53, 15, 28 |
Multiply the prime numbers at the bottom and the left side.
2 x 13 x 859 x 53 x 15 x 28 = 497154840
Therefore, the lowest common multiple of 859,689,390,728 is 497154840.
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.
859 x 689 x 390 x 728 = 168038335920
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.
859 : 1, 859
689 : 1, 13, 53, 689
390 : 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390
728 : 1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 859,689,390,728, is 1.
Now, the common factors can be found like this.
859:859
689:13x 53
390:2x 3x 5x 13
728:2x 2x 2x 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 13x 13 = 338
Therefore, the value for common factors is 338.
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 = 168038335920/(1x338)
LCM = 168038335920/338
LCM = 497154840
Thus, we can understand that the LCM of 859,689,390,728 is 497154840.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 859, 689, 390, 728
1. What is the LCM of 859, 689, 390, 728?
Answer: LCM of 859, 689, 390, 728 is 497154840.
2. How to calculate the LCM of 859, 689, 390, 728?
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 859, 689, 390, 728.
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}.