LCM of 261, 981, 986, 857
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 261, 981, 986, 857 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 261, 981, 986, 857. So, keep reading to learn more.
Given numbers are 261,981,986,857
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 261,981,986,857 is 828946962.
Find LCM of 261,981,986,857 with Prime Factorization
| 3 | 261, 981, 986, 857 |
| 3 | 87, 327, 986, 857 |
| 29 | 29, 109, 986, 857 |
| 1, 109, 34, 857 |
Multiply the prime numbers at the bottom and the left side.
3 x 3 x 29 x 1 x 109 x 34 x 857 = 828946962
Therefore, the lowest common multiple of 261,981,986,857 is 828946962.
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.
261 x 981 x 986 x 857 = 216355157082
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.
261 : 1, 3, 9, 29, 87, 261
981 : 1, 3, 9, 109, 327, 981
986 : 1, 2, 17, 29, 34, 58, 493, 986
857 : 1, 857
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 261,981,986,857, is 1.
Now, the common factors can be found like this.
261:3x 3x 29
981:3x 3x 109
986:2x 17x 29
857:857
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 29 = 261
Therefore, the value for common factors is 261.
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 = 216355157082/(1x261)
LCM = 216355157082/261
LCM = 828946962
Thus, we can understand that the LCM of 261,981,986,857 is 828946962.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 261, 981, 986, 857
1. What is the LCM of 261, 981, 986, 857?
Answer: LCM of 261, 981, 986, 857 is 828946962.
2. How to calculate the LCM of 261, 981, 986, 857?
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 261, 981, 986, 857.
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}.