LCM of 111, 189, 428, 987
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 111, 189, 428, 987 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 111, 189, 428, 987. So, keep reading to learn more.
Given numbers are 111,189,428,987
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 111,189,428,987 is 140671188.
Find LCM of 111,189,428,987 with Prime Factorization
| 3 | 111, 189, 428, 987 |
| 7 | 37, 63, 428, 329 |
| 37, 9, 428, 47 |
Multiply the prime numbers at the bottom and the left side.
3 x 7 x 37 x 9 x 428 x 47 = 140671188
Therefore, the lowest common multiple of 111,189,428,987 is 140671188.
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.
111 x 189 x 428 x 987 = 8862284844
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.
111 : 1, 3, 37, 111
189 : 1, 3, 7, 9, 21, 27, 63, 189
428 : 1, 2, 4, 107, 214, 428
987 : 1, 3, 7, 21, 47, 141, 329, 987
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 111,189,428,987, is 1.
Now, the common factors can be found like this.
111:3x 37
189:3x 3x 3x 7
428:2x 2x 107
987:3x 7x 47
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 7 = 63
Therefore, the value for common factors is 63.
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 = 8862284844/(1x63)
LCM = 8862284844/63
LCM = 140671188
Thus, we can understand that the LCM of 111,189,428,987 is 140671188.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 111, 189, 428, 987
1. What is the LCM of 111, 189, 428, 987?
Answer: LCM of 111, 189, 428, 987 is 140671188.
2. How to calculate the LCM of 111, 189, 428, 987?
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 111, 189, 428, 987.
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}.