LCM of 400, 830, 820
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 400, 830, 820 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 400, 830, 820. So, keep reading to learn more.
Given numbers are 400,830,820
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 400,830,820 is 1361200.
Find LCM of 400,830,820 with Prime Factorization
| 2 | 400, 830, 820 |
| 2 | 200, 415, 410 |
| 5 | 100, 415, 205 |
| 20, 83, 41 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 5 x 20 x 83 x 41 = 1361200
Therefore, the lowest common multiple of 400,830,820 is 1361200.
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.
400 x 830 x 820 = 272240000
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.
400 : 1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400
830 : 1, 2, 5, 10, 83, 166, 415, 830
820 : 1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820
10 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 400,830,820, is 10.
Now, the common factors can be found like this.
400:2x 2x 2x 2x 5x 5
830:2x 5x 83
820:2x 2x 5x 41
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 5 = 20
Therefore, the value for common factors is 20.
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 = 272240000/(10x20)
LCM = 272240000/200
LCM = 1361200
Thus, we can understand that the LCM of 400,830,820 is 1361200.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 400, 830, 820
1. What is the LCM of 400, 830, 820?
Answer: LCM of 400, 830, 820 is 1361200.
2. How to calculate the LCM of 400, 830, 820?
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 400, 830, 820.
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}.