LCM of 858, 641, 819, 815
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 858, 641, 819, 815 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, 641, 819, 815. So, keep reading to learn more.
Given numbers are 858,641,819,815
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 858,641,819,815 is 9412873470.
Find LCM of 858,641,819,815 with Prime Factorization
| 3 | 858, 641, 819, 815 |
| 13 | 286, 641, 273, 815 |
| 22, 641, 21, 815 |
Multiply the prime numbers at the bottom and the left side.
3 x 13 x 22 x 641 x 21 x 815 = 9412873470
Therefore, the lowest common multiple of 858,641,819,815 is 9412873470.
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 641 x 819 x 815 = 367102065330
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
641 : 1, 641
819 : 1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819
815 : 1, 5, 163, 815
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 858,641,819,815, is 1.
Now, the common factors can be found like this.
858:2x 3x 11x 13
641:641
819:3x 3x 7x 13
815:5x 163
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 13 = 39
Therefore, the value for common factors is 39.
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 = 367102065330/(1x39)
LCM = 367102065330/39
LCM = 9412873470
Thus, we can understand that the LCM of 858,641,819,815 is 9412873470.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 858, 641, 819, 815
1. What is the LCM of 858, 641, 819, 815?
Answer: LCM of 858, 641, 819, 815 is 9412873470.
2. How to calculate the LCM of 858, 641, 819, 815?
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, 641, 819, 815.
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}.