LCM of 243, 420, 612, 903
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 243, 420, 612, 903 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 243, 420, 612, 903. So, keep reading to learn more.
Given numbers are 243,420,612,903
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 243,420,612,903 is 24868620.
Find LCM of 243,420,612,903 with Prime Factorization
| 2 | 243, 420, 612, 903 |
| 2 | 243, 210, 306, 903 |
| 3 | 243, 105, 153, 903 |
| 3 | 81, 35, 51, 301 |
| 7 | 27, 35, 17, 301 |
| 27, 5, 17, 43 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 3 x 7 x 27 x 5 x 17 x 43 = 24868620
Therefore, the lowest common multiple of 243,420,612,903 is 24868620.
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.
243 x 420 x 612 x 903 = 56402030160
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.
243 : 1, 3, 9, 27, 81, 243
420 : 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420
612 : 1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 102, 153, 204, 306, 612
903 : 1, 3, 7, 21, 43, 129, 301, 903
3 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 243,420,612,903, is 3.
Now, the common factors can be found like this.
243:3x 3x 3x 3x 3
420:2x 2x 3x 5x 7
612:2x 2x 3x 3x 17
903:3x 7x 43
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 3x 3x 3x 7 = 756
Therefore, the value for common factors is 756.
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 = 56402030160/(3x756)
LCM = 56402030160/2268
LCM = 24868620
Thus, we can understand that the LCM of 243,420,612,903 is 24868620.
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FAQs on LCM of 243, 420, 612, 903
1. What is the LCM of 243, 420, 612, 903?
Answer: LCM of 243, 420, 612, 903 is 24868620.
2. How to calculate the LCM of 243, 420, 612, 903?
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 243, 420, 612, 903.
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}.