LCM of 400, 225, 621, 484, 638
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 400, 225, 621, 484, 638 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, 225, 621, 484, 638. So, keep reading to learn more.
Given numbers are 400,225,621,484,638
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 400,225,621,484,638 is 871635600.
Find LCM of 400,225,621,484,638 with Prime Factorization
| 2 | 400, 225, 621, 484, 638 |
| 2 | 200, 225, 621, 242, 319 |
| 3 | 100, 225, 621, 121, 319 |
| 3 | 100, 75, 207, 121, 319 |
| 5 | 100, 25, 69, 121, 319 |
| 5 | 20, 5, 69, 121, 319 |
| 11 | 4, 1, 69, 121, 319 |
| 4, 1, 69, 11, 29 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 3 x 5 x 5 x 11 x 4 x 1 x 69 x 11 x 29 = 871635600
Therefore, the lowest common multiple of 400,225,621,484,638 is 871635600.
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 225 x 621 x 484 x 638 = 17258384880000
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
225 : 1, 3, 5, 9, 15, 25, 45, 75, 225
621 : 1, 3, 9, 23, 27, 69, 207, 621
484 : 1, 2, 4, 11, 22, 44, 121, 242, 484
638 : 1, 2, 11, 22, 29, 58, 319, 638
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 400,225,621,484,638, is 1.
Now, the common factors can be found like this.
400:2x 2x 2x 2x 5x 5
225:3x 3x 5x 5
621:3x 3x 3x 23
484:2x 2x 11x 11
638:2x 11x 29
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 2x 3x 3x 5x 5x 11 = 19800
Therefore, the value for common factors is 19800.
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 = 17258384880000/(1x19800)
LCM = 17258384880000/19800
LCM = 871635600
Thus, we can understand that the LCM of 400,225,621,484,638 is 871635600.
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FAQs on LCM of 400, 225, 621, 484, 638
1. What is the LCM of 400, 225, 621, 484, 638?
Answer: LCM of 400, 225, 621, 484, 638 is 871635600.
2. How to calculate the LCM of 400, 225, 621, 484, 638?
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, 225, 621, 484, 638.
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}.