LCM of 986, 858, 390, 243
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 986, 858, 390, 243 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 986, 858, 390, 243. So, keep reading to learn more.
Given numbers are 986,858,390,243
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 986,858,390,243 is 171312570.
Find LCM of 986,858,390,243 with Prime Factorization
| 2 | 986, 858, 390, 243 |
| 3 | 493, 429, 195, 243 |
| 13 | 493, 143, 65, 81 |
| 493, 11, 5, 81 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 13 x 493 x 11 x 5 x 81 = 171312570
Therefore, the lowest common multiple of 986,858,390,243 is 171312570.
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.
986 x 858 x 390 x 243 = 80174282760
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.
986 : 1, 2, 17, 29, 34, 58, 493, 986
858 : 1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 143, 286, 429, 858
390 : 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390
243 : 1, 3, 9, 27, 81, 243
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 986,858,390,243, is 1.
Now, the common factors can be found like this.
986:2x 17x 29
858:2x 3x 11x 13
390:2x 3x 5x 13
243:3x 3x 3x 3x 3
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 2x 3x 3x 13 = 468
Therefore, the value for common factors is 468.
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 = 80174282760/(1x468)
LCM = 80174282760/468
LCM = 171312570
Thus, we can understand that the LCM of 986,858,390,243 is 171312570.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 986, 858, 390, 243
1. What is the LCM of 986, 858, 390, 243?
Answer: LCM of 986, 858, 390, 243 is 171312570.
2. How to calculate the LCM of 986, 858, 390, 243?
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 986, 858, 390, 243.
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}.