LCM of 231, 774, 161, 989
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 231, 774, 161, 989 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 231, 774, 161, 989. So, keep reading to learn more.
Given numbers are 231,774,161,989
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 231,774,161,989 is 1370754.
Find LCM of 231,774,161,989 with Prime Factorization
| 3 | 231, 774, 161, 989 |
| 7 | 77, 258, 161, 989 |
| 23 | 11, 258, 23, 989 |
| 43 | 11, 258, 1, 43 |
| 11, 6, 1, 1 |
Multiply the prime numbers at the bottom and the left side.
3 x 7 x 23 x 43 x 11 x 6 x 1 x 1 = 1370754
Therefore, the lowest common multiple of 231,774,161,989 is 1370754.
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.
231 x 774 x 161 x 989 = 28469189826
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.
231 : 1, 3, 7, 11, 21, 33, 77, 231
774 : 1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774
161 : 1, 7, 23, 161
989 : 1, 23, 43, 989
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 231,774,161,989, is 1.
Now, the common factors can be found like this.
231:3x 7x 11
774:2x 3x 3x 43
161:7x 23
989:23x 43
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 7x 23x 43 = 20769
Therefore, the value for common factors is 20769.
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 = 28469189826/(1x20769)
LCM = 28469189826/20769
LCM = 1370754
Thus, we can understand that the LCM of 231,774,161,989 is 1370754.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 231, 774, 161, 989
1. What is the LCM of 231, 774, 161, 989?
Answer: LCM of 231, 774, 161, 989 is 1370754.
2. How to calculate the LCM of 231, 774, 161, 989?
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 231, 774, 161, 989.
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}.