LCM of 8145, 7209
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 8145, 7209 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 8145, 7209. So, keep reading to learn more.
Given numbers are 8145,7209
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 8145,7209 is 6524145.
Find LCM of 8145,7209 with Prime Factorization
| 3 | 8145, 7209 |
| 3 | 2715, 2403 |
| 905, 801 |
Multiply the prime numbers at the bottom and the left side.
3 x 3 x 905 x 801 = 6524145
Therefore, the lowest common multiple of 8145,7209 is 6524145.
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.
8145 x 7209 = 58717305
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.
8145 : 1, 3, 5, 9, 15, 45, 181, 543, 905, 1629, 2715, 8145
7209 : 1, 3, 9, 27, 81, 89, 267, 801, 2403, 7209
9 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 8145,7209, is 9.
Now, the common factors can be found like this.
8145:3x 3x 5x 181
7209:3x 3x 3x 3x 89
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
= 1
Therefore, the value for common factors is 1.
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 = 58717305/(9x1)
LCM = 58717305/9
LCM = 6524145
Thus, we can understand that the LCM of 8145,7209 is 6524145.
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FAQs on LCM of 8145, 7209
1. What is the LCM of 8145, 7209?
Answer: LCM of 8145, 7209 is 6524145.
2. How to calculate the LCM of 8145, 7209?
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 8145, 7209.
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}.