LCM of 400, 921, 240, 324
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 400, 921, 240, 324 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, 921, 240, 324. So, keep reading to learn more.
Given numbers are 400,921,240,324
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 400,921,240,324 is 9946800.
Find LCM of 400,921,240,324 with Prime Factorization
| 2 | 400, 921, 240, 324 |
| 2 | 200, 921, 120, 162 |
| 2 | 100, 921, 60, 81 |
| 2 | 50, 921, 30, 81 |
| 3 | 25, 921, 15, 81 |
| 5 | 25, 307, 5, 27 |
| 1, 307, 5, 27 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 2 x 3 x 5 x 1 x 307 x 5 x 27 = 9946800
Therefore, the lowest common multiple of 400,921,240,324 is 9946800.
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 921 x 240 x 324 = 28646784000
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
921 : 1, 3, 307, 921
240 : 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240
324 : 1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 400,921,240,324, is 1.
Now, the common factors can be found like this.
400:2x 2x 2x 2x 5x 5
921:3x 307
240:2x 2x 2x 2x 3x 5
324:2x 2x 3x 3x 3x 3
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 2x 2x 2x 3x 3x 5 = 2880
Therefore, the value for common factors is 2880.
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 = 28646784000/(1x2880)
LCM = 28646784000/2880
LCM = 9946800
Thus, we can understand that the LCM of 400,921,240,324 is 9946800.
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FAQs on LCM of 400, 921, 240, 324
1. What is the LCM of 400, 921, 240, 324?
Answer: LCM of 400, 921, 240, 324 is 9946800.
2. How to calculate the LCM of 400, 921, 240, 324?
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, 921, 240, 324.
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}.