LCM of 205, 186, 149, 155, 861
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 205, 186, 149, 155, 861 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 205, 186, 149, 155, 861. So, keep reading to learn more.
Given numbers are 205,186,149,155,861
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 205,186,149,155,861 is 39769590.
Find LCM of 205,186,149,155,861 with Prime Factorization
| 3 | 205, 186, 149, 155, 861 |
| 5 | 205, 62, 149, 155, 287 |
| 31 | 41, 62, 149, 31, 287 |
| 41 | 41, 2, 149, 1, 287 |
| 1, 2, 149, 1, 7 |
Multiply the prime numbers at the bottom and the left side.
3 x 5 x 31 x 41 x 1 x 2 x 149 x 1 x 7 = 39769590
Therefore, the lowest common multiple of 205,186,149,155,861 is 39769590.
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.
205 x 186 x 149 x 155 x 861 = 758207233350
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.
205 : 1, 5, 41, 205
186 : 1, 2, 3, 6, 31, 62, 93, 186
149 : 1, 149
155 : 1, 5, 31, 155
861 : 1, 3, 7, 21, 41, 123, 287, 861
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 205,186,149,155,861, is 1.
Now, the common factors can be found like this.
205:5x 41
186:2x 3x 31
149:149
155:5x 31
861:3x 7x 41
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 5x 31x 41 = 19065
Therefore, the value for common factors is 19065.
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 = 758207233350/(1x19065)
LCM = 758207233350/19065
LCM = 39769590
Thus, we can understand that the LCM of 205,186,149,155,861 is 39769590.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 205, 186, 149, 155, 861
1. What is the LCM of 205, 186, 149, 155, 861?
Answer: LCM of 205, 186, 149, 155, 861 is 39769590.
2. How to calculate the LCM of 205, 186, 149, 155, 861?
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 205, 186, 149, 155, 861.
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}.