LCM of 173, 216, 891, 990
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 173, 216, 891, 990 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 173, 216, 891, 990. So, keep reading to learn more.
Given numbers are 173,216,891,990
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 173,216,891,990 is 6165720.
Find LCM of 173,216,891,990 with Prime Factorization
| 2 | 173, 216, 891, 990 |
| 3 | 173, 108, 891, 495 |
| 3 | 173, 36, 297, 165 |
| 3 | 173, 12, 99, 55 |
| 11 | 173, 4, 33, 55 |
| 173, 4, 3, 5 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 3 x 3 x 11 x 173 x 4 x 3 x 5 = 6165720
Therefore, the lowest common multiple of 173,216,891,990 is 6165720.
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.
173 x 216 x 891 x 990 = 32961939120
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.
173 : 1, 173
216 : 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216
891 : 1, 3, 9, 11, 27, 33, 81, 99, 297, 891
990 : 1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 173,216,891,990, is 1.
Now, the common factors can be found like this.
173:173
216:2x 2x 2x 3x 3x 3
891:3x 3x 3x 3x 11
990:2x 3x 3x 5x 11
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 11 = 5346
Therefore, the value for common factors is 5346.
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 = 32961939120/(1x5346)
LCM = 32961939120/5346
LCM = 6165720
Thus, we can understand that the LCM of 173,216,891,990 is 6165720.
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FAQs on LCM of 173, 216, 891, 990
1. What is the LCM of 173, 216, 891, 990?
Answer: LCM of 173, 216, 891, 990 is 6165720.
2. How to calculate the LCM of 173, 216, 891, 990?
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 173, 216, 891, 990.
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}.