LCM of 981, 638, 506, 189
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 981, 638, 506, 189 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 981, 638, 506, 189. So, keep reading to learn more.
Given numbers are 981,638,506,189
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 981,638,506,189 is 302299074.
Find LCM of 981,638,506,189 with Prime Factorization
| 2 | 981, 638, 506, 189 |
| 3 | 981, 319, 253, 189 |
| 3 | 327, 319, 253, 63 |
| 11 | 109, 319, 253, 21 |
| 109, 29, 23, 21 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 3 x 11 x 109 x 29 x 23 x 21 = 302299074
Therefore, the lowest common multiple of 981,638,506,189 is 302299074.
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.
981 x 638 x 506 x 189 = 59855216652
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.
981 : 1, 3, 9, 109, 327, 981
638 : 1, 2, 11, 22, 29, 58, 319, 638
506 : 1, 2, 11, 22, 23, 46, 253, 506
189 : 1, 3, 7, 9, 21, 27, 63, 189
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 981,638,506,189, is 1.
Now, the common factors can be found like this.
981:3x 3x 109
638:2x 11x 29
506:2x 11x 23
189:3x 3x 3x 7
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 3x 11 = 198
Therefore, the value for common factors is 198.
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 = 59855216652/(1x198)
LCM = 59855216652/198
LCM = 302299074
Thus, we can understand that the LCM of 981,638,506,189 is 302299074.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 981, 638, 506, 189
1. What is the LCM of 981, 638, 506, 189?
Answer: LCM of 981, 638, 506, 189 is 302299074.
2. How to calculate the LCM of 981, 638, 506, 189?
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 981, 638, 506, 189.
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}.