LCM of 513, 642, 808, 921
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 513, 642, 808, 921 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 513, 642, 808, 921. So, keep reading to learn more.
Given numbers are 513,642,808,921
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 513,642,808,921 is 13616041896.
Find LCM of 513,642,808,921 with Prime Factorization
| 2 | 513, 642, 808, 921 |
| 3 | 513, 321, 404, 921 |
| 171, 107, 404, 307 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 171 x 107 x 404 x 307 = 13616041896
Therefore, the lowest common multiple of 513,642,808,921 is 13616041896.
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.
513 x 642 x 808 x 921 = 245088754128
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.
513 : 1, 3, 9, 19, 27, 57, 171, 513
642 : 1, 2, 3, 6, 107, 214, 321, 642
808 : 1, 2, 4, 8, 101, 202, 404, 808
921 : 1, 3, 307, 921
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 513,642,808,921, is 1.
Now, the common factors can be found like this.
513:3x 3x 3x 19
642:2x 3x 107
808:2x 2x 2x 101
921:3x 307
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3x 3 = 18
Therefore, the value for common factors is 18.
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 = 245088754128/(1x18)
LCM = 245088754128/18
LCM = 13616041896
Thus, we can understand that the LCM of 513,642,808,921 is 13616041896.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 513, 642, 808, 921
1. What is the LCM of 513, 642, 808, 921?
Answer: LCM of 513, 642, 808, 921 is 13616041896.
2. How to calculate the LCM of 513, 642, 808, 921?
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 513, 642, 808, 921.
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}.