LCM of 821, 273, 646, 133
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 821, 273, 646, 133 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 821, 273, 646, 133. So, keep reading to learn more.
Given numbers are 821,273,646,133
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 821,273,646,133 is 144789918.
Find LCM of 821,273,646,133 with Prime Factorization
| 7 | 821, 273, 646, 133 |
| 19 | 821, 39, 646, 19 |
| 821, 39, 34, 1 |
Multiply the prime numbers at the bottom and the left side.
7 x 19 x 821 x 39 x 34 x 1 = 144789918
Therefore, the lowest common multiple of 821,273,646,133 is 144789918.
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.
821 x 273 x 646 x 133 = 19257059094
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.
821 : 1, 821
273 : 1, 3, 7, 13, 21, 39, 91, 273
646 : 1, 2, 17, 19, 34, 38, 323, 646
133 : 1, 7, 19, 133
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 821,273,646,133, is 1.
Now, the common factors can be found like this.
821:821
273:3x 7x 13
646:2x 17x 19
133:7x 19
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
7x 19 = 133
Therefore, the value for common factors is 133.
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 = 19257059094/(1x133)
LCM = 19257059094/133
LCM = 144789918
Thus, we can understand that the LCM of 821,273,646,133 is 144789918.
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FAQs on LCM of 821, 273, 646, 133
1. What is the LCM of 821, 273, 646, 133?
Answer: LCM of 821, 273, 646, 133 is 144789918.
2. How to calculate the LCM of 821, 273, 646, 133?
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 821, 273, 646, 133.
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}.