LCM of 396, 391, 815, 798
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 396, 391, 815, 798 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 396, 391, 815, 798. So, keep reading to learn more.
Given numbers are 396,391,815,798
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 396,391,815,798 is 16783448220.
Find LCM of 396,391,815,798 with Prime Factorization
| 2 | 396, 391, 815, 798 |
| 3 | 198, 391, 815, 399 |
| 66, 391, 815, 133 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 66 x 391 x 815 x 133 = 16783448220
Therefore, the lowest common multiple of 396,391,815,798 is 16783448220.
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.
396 x 391 x 815 x 798 = 100700689320
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.
396 : 1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 396
391 : 1, 17, 23, 391
815 : 1, 5, 163, 815
798 : 1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 114, 133, 266, 399, 798
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 396,391,815,798, is 1.
Now, the common factors can be found like this.
396:2x 2x 3x 3x 11
391:17x 23
815:5x 163
798:2x 3x 7x 19
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3 = 6
Therefore, the value for common factors is 6.
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 = 100700689320/(1x6)
LCM = 100700689320/6
LCM = 16783448220
Thus, we can understand that the LCM of 396,391,815,798 is 16783448220.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 396, 391, 815, 798
1. What is the LCM of 396, 391, 815, 798?
Answer: LCM of 396, 391, 815, 798 is 16783448220.
2. How to calculate the LCM of 396, 391, 815, 798?
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 396, 391, 815, 798.
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}.