LCM of 909, 813, 821, 644
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 909, 813, 821, 644 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 909, 813, 821, 644. So, keep reading to learn more.
Given numbers are 909,813,821,644
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 909,813,821,644 is 130245341436.
Find LCM of 909,813,821,644 with Prime Factorization
| 3 | 909, 813, 821, 644 |
| 303, 271, 821, 644 |
Multiply the prime numbers at the bottom and the left side.
3 x 303 x 271 x 821 x 644 = 130245341436
Therefore, the lowest common multiple of 909,813,821,644 is 130245341436.
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.
909 x 813 x 821 x 644 = 390736024308
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.
909 : 1, 3, 9, 101, 303, 909
813 : 1, 3, 271, 813
821 : 1, 821
644 : 1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 909,813,821,644, is 1.
Now, the common factors can be found like this.
909:3x 3x 101
813:3x 271
821:821
644:2x 2x 7x 23
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3 = 3
Therefore, the value for common factors is 3.
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 = 390736024308/(1x3)
LCM = 390736024308/3
LCM = 130245341436
Thus, we can understand that the LCM of 909,813,821,644 is 130245341436.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 909, 813, 821, 644
1. What is the LCM of 909, 813, 821, 644?
Answer: LCM of 909, 813, 821, 644 is 130245341436.
2. How to calculate the LCM of 909, 813, 821, 644?
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 909, 813, 821, 644.
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}.