LCM of 990, 247, 551, 813
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 990, 247, 551, 813 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 990, 247, 551, 813. So, keep reading to learn more.
Given numbers are 990,247,551,813
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 990,247,551,813 is 1921761270.
Find LCM of 990,247,551,813 with Prime Factorization
| 3 | 990, 247, 551, 813 |
| 19 | 330, 247, 551, 271 |
| 330, 13, 29, 271 |
Multiply the prime numbers at the bottom and the left side.
3 x 19 x 330 x 13 x 29 x 271 = 1921761270
Therefore, the lowest common multiple of 990,247,551,813 is 1921761270.
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.
990 x 247 x 551 x 813 = 109540392390
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.
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
247 : 1, 13, 19, 247
551 : 1, 19, 29, 551
813 : 1, 3, 271, 813
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 990,247,551,813, is 1.
Now, the common factors can be found like this.
990:2x 3x 3x 5x 11
247:13x 19
551:19x 29
813:3x 271
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 19 = 57
Therefore, the value for common factors is 57.
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 = 109540392390/(1x57)
LCM = 109540392390/57
LCM = 1921761270
Thus, we can understand that the LCM of 990,247,551,813 is 1921761270.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 990, 247, 551, 813
1. What is the LCM of 990, 247, 551, 813?
Answer: LCM of 990, 247, 551, 813 is 1921761270.
2. How to calculate the LCM of 990, 247, 551, 813?
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 990, 247, 551, 813.
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}.