LCM of 987, 390, 893, 811
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 987, 390, 893, 811 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 987, 390, 893, 811. So, keep reading to learn more.
Given numbers are 987,390,893,811
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 987,390,893,811 is 1977128790.
Find LCM of 987,390,893,811 with Prime Factorization
| 3 | 987, 390, 893, 811 |
| 47 | 329, 130, 893, 811 |
| 7, 130, 19, 811 |
Multiply the prime numbers at the bottom and the left side.
3 x 47 x 7 x 130 x 19 x 811 = 1977128790
Therefore, the lowest common multiple of 987,390,893,811 is 1977128790.
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.
987 x 390 x 893 x 811 = 278775159390
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.
987 : 1, 3, 7, 21, 47, 141, 329, 987
390 : 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390
893 : 1, 19, 47, 893
811 : 1, 811
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 987,390,893,811, is 1.
Now, the common factors can be found like this.
987:3x 7x 47
390:2x 3x 5x 13
893:19x 47
811:811
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 47 = 141
Therefore, the value for common factors is 141.
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 = 278775159390/(1x141)
LCM = 278775159390/141
LCM = 1977128790
Thus, we can understand that the LCM of 987,390,893,811 is 1977128790.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 987, 390, 893, 811
1. What is the LCM of 987, 390, 893, 811?
Answer: LCM of 987, 390, 893, 811 is 1977128790.
2. How to calculate the LCM of 987, 390, 893, 811?
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 987, 390, 893, 811.
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}.