LCM of 225, 103, 405, 391
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 225, 103, 405, 391 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 225, 103, 405, 391. So, keep reading to learn more.
Given numbers are 225,103,405,391
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 225,103,405,391 is 81552825.
Find LCM of 225,103,405,391 with Prime Factorization
| 3 | 225, 103, 405, 391 |
| 3 | 75, 103, 135, 391 |
| 5 | 25, 103, 45, 391 |
| 5, 103, 9, 391 |
Multiply the prime numbers at the bottom and the left side.
3 x 3 x 5 x 5 x 103 x 9 x 391 = 81552825
Therefore, the lowest common multiple of 225,103,405,391 is 81552825.
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.
225 x 103 x 405 x 391 = 3669877125
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.
225 : 1, 3, 5, 9, 15, 25, 45, 75, 225
103 : 1, 103
405 : 1, 3, 5, 9, 15, 27, 45, 81, 135, 405
391 : 1, 17, 23, 391
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 225,103,405,391, is 1.
Now, the common factors can be found like this.
225:3x 3x 5x 5
103:103
405:3x 3x 3x 3x 5
391:17x 23
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 3x 5 = 45
Therefore, the value for common factors is 45.
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 = 3669877125/(1x45)
LCM = 3669877125/45
LCM = 81552825
Thus, we can understand that the LCM of 225,103,405,391 is 81552825.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 225, 103, 405, 391
1. What is the LCM of 225, 103, 405, 391?
Answer: LCM of 225, 103, 405, 391 is 81552825.
2. How to calculate the LCM of 225, 103, 405, 391?
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 225, 103, 405, 391.
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}.