LCM of 858, 242, 638, 871
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 858, 242, 638, 871 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 858, 242, 638, 871. So, keep reading to learn more.
Given numbers are 858,242,638,871
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 858,242,638,871 is 18338034.
Find LCM of 858,242,638,871 with Prime Factorization
| 2 | 858, 242, 638, 871 |
| 11 | 429, 121, 319, 871 |
| 13 | 39, 11, 29, 871 |
| 3, 11, 29, 67 |
Multiply the prime numbers at the bottom and the left side.
2 x 11 x 13 x 3 x 11 x 29 x 67 = 18338034
Therefore, the lowest common multiple of 858,242,638,871 is 18338034.
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.
858 x 242 x 638 x 871 = 115382909928
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.
858 : 1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 143, 286, 429, 858
242 : 1, 2, 11, 22, 121, 242
638 : 1, 2, 11, 22, 29, 58, 319, 638
871 : 1, 13, 67, 871
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 858,242,638,871, is 1.
Now, the common factors can be found like this.
858:2x 3x 11x 13
242:2x 11x 11
638:2x 11x 29
871:13x 67
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 11x 11x 13 = 6292
Therefore, the value for common factors is 6292.
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 = 115382909928/(1x6292)
LCM = 115382909928/6292
LCM = 18338034
Thus, we can understand that the LCM of 858,242,638,871 is 18338034.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 858, 242, 638, 871
1. What is the LCM of 858, 242, 638, 871?
Answer: LCM of 858, 242, 638, 871 is 18338034.
2. How to calculate the LCM of 858, 242, 638, 871?
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 858, 242, 638, 871.
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}.