LCM of 408, 209, 489, 170
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 408, 209, 489, 170 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 408, 209, 489, 170. So, keep reading to learn more.
Given numbers are 408,209,489,170
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 408,209,489,170 is 69496680.
Find LCM of 408,209,489,170 with Prime Factorization
| 2 | 408, 209, 489, 170 |
| 3 | 204, 209, 489, 85 |
| 17 | 68, 209, 163, 85 |
| 4, 209, 163, 5 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 17 x 4 x 209 x 163 x 5 = 69496680
Therefore, the lowest common multiple of 408,209,489,170 is 69496680.
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.
408 x 209 x 489 x 170 = 7088661360
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.
408 : 1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408
209 : 1, 11, 19, 209
489 : 1, 3, 163, 489
170 : 1, 2, 5, 10, 17, 34, 85, 170
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 408,209,489,170, is 1.
Now, the common factors can be found like this.
408:2x 2x 2x 3x 17
209:11x 19
489:3x 163
170:2x 5x 17
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3x 17 = 102
Therefore, the value for common factors is 102.
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 = 7088661360/(1x102)
LCM = 7088661360/102
LCM = 69496680
Thus, we can understand that the LCM of 408,209,489,170 is 69496680.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 408, 209, 489, 170
1. What is the LCM of 408, 209, 489, 170?
Answer: LCM of 408, 209, 489, 170 is 69496680.
2. How to calculate the LCM of 408, 209, 489, 170?
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 408, 209, 489, 170.
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}.