LCM of 621, 866, 891, 648
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 621, 866, 891, 648 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 621, 866, 891, 648. So, keep reading to learn more.
Given numbers are 621,866,891,648
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 621,866,891,648 is 70987752.
Find LCM of 621,866,891,648 with Prime Factorization
| 2 | 621, 866, 891, 648 |
| 3 | 621, 433, 891, 324 |
| 3 | 207, 433, 297, 108 |
| 3 | 69, 433, 99, 36 |
| 3 | 23, 433, 33, 12 |
| 23, 433, 11, 4 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 3 x 3 x 3 x 23 x 433 x 11 x 4 = 70987752
Therefore, the lowest common multiple of 621,866,891,648 is 70987752.
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.
621 x 866 x 891 x 648 = 310500427248
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.
621 : 1, 3, 9, 23, 27, 69, 207, 621
866 : 1, 2, 433, 866
891 : 1, 3, 9, 11, 27, 33, 81, 99, 297, 891
648 : 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 621,866,891,648, is 1.
Now, the common factors can be found like this.
621:3x 3x 3x 23
866:2x 433
891:3x 3x 3x 3x 11
648:2x 2x 2x 3x 3x 3x 3
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 3x 3x 3x 3x 3x 3 = 4374
Therefore, the value for common factors is 4374.
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 = 310500427248/(1x4374)
LCM = 310500427248/4374
LCM = 70987752
Thus, we can understand that the LCM of 621,866,891,648 is 70987752.
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FAQs on LCM of 621, 866, 891, 648
1. What is the LCM of 621, 866, 891, 648?
Answer: LCM of 621, 866, 891, 648 is 70987752.
2. How to calculate the LCM of 621, 866, 891, 648?
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 621, 866, 891, 648.
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}.