LCM of 821, 432, 630, 540
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 821, 432, 630, 540 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 821, 432, 630, 540. So, keep reading to learn more.
Given numbers are 821,432,630,540
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 821,432,630,540 is 12413520.
Find LCM of 821,432,630,540 with Prime Factorization
| 2 | 821, 432, 630, 540 |
| 2 | 821, 216, 315, 270 |
| 3 | 821, 108, 315, 135 |
| 3 | 821, 36, 105, 45 |
| 3 | 821, 12, 35, 15 |
| 5 | 821, 4, 35, 5 |
| 821, 4, 7, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 3 x 3 x 5 x 821 x 4 x 7 x 1 = 12413520
Therefore, the lowest common multiple of 821,432,630,540 is 12413520.
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.
821 x 432 x 630 x 540 = 120659414400
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.
821 : 1, 821
432 : 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 144, 216, 432
630 : 1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630
540 : 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 821,432,630,540, is 1.
Now, the common factors can be found like this.
821:821
432:2x 2x 2x 2x 3x 3x 3
630:2x 3x 3x 5x 7
540:2x 2x 3x 3x 3x 5
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 3x 3x 3x 5 = 9720
Therefore, the value for common factors is 9720.
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 = 120659414400/(1x9720)
LCM = 120659414400/9720
LCM = 12413520
Thus, we can understand that the LCM of 821,432,630,540 is 12413520.
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FAQs on LCM of 821, 432, 630, 540
1. What is the LCM of 821, 432, 630, 540?
Answer: LCM of 821, 432, 630, 540 is 12413520.
2. How to calculate the LCM of 821, 432, 630, 540?
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 821, 432, 630, 540.
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}.