LCM of 168, 655, 187, 220
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 168, 655, 187, 220 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 168, 655, 187, 220. So, keep reading to learn more.
Given numbers are 168,655,187,220
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 168,655,187,220 is 20577480.
Find LCM of 168,655,187,220 with Prime Factorization
| 2 | 168, 655, 187, 220 |
| 2 | 84, 655, 187, 110 |
| 5 | 42, 655, 187, 55 |
| 11 | 42, 131, 187, 11 |
| 42, 131, 17, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 5 x 11 x 42 x 131 x 17 x 1 = 20577480
Therefore, the lowest common multiple of 168,655,187,220 is 20577480.
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.
168 x 655 x 187 x 220 = 4527045600
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.
168 : 1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168
655 : 1, 5, 131, 655
187 : 1, 11, 17, 187
220 : 1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 168,655,187,220, is 1.
Now, the common factors can be found like this.
168:2x 2x 2x 3x 7
655:5x 131
187:11x 17
220:2x 2x 5x 11
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 5x 11 = 220
Therefore, the value for common factors is 220.
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 = 4527045600/(1x220)
LCM = 4527045600/220
LCM = 20577480
Thus, we can understand that the LCM of 168,655,187,220 is 20577480.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 168, 655, 187, 220
1. What is the LCM of 168, 655, 187, 220?
Answer: LCM of 168, 655, 187, 220 is 20577480.
2. How to calculate the LCM of 168, 655, 187, 220?
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 168, 655, 187, 220.
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}.