LCM of 218, 921, 987, 799
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 218, 921, 987, 799 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 218, 921, 987, 799. So, keep reading to learn more.
Given numbers are 218,921,987,799
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 218,921,987,799 is 1122951354.
Find LCM of 218,921,987,799 with Prime Factorization
| 3 | 218, 921, 987, 799 |
| 47 | 218, 307, 329, 799 |
| 218, 307, 7, 17 |
Multiply the prime numbers at the bottom and the left side.
3 x 47 x 218 x 307 x 7 x 17 = 1122951354
Therefore, the lowest common multiple of 218,921,987,799 is 1122951354.
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.
218 x 921 x 987 x 799 = 158336140914
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.
218 : 1, 2, 109, 218
921 : 1, 3, 307, 921
987 : 1, 3, 7, 21, 47, 141, 329, 987
799 : 1, 17, 47, 799
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 218,921,987,799, is 1.
Now, the common factors can be found like this.
218:2x 109
921:3x 307
987:3x 7x 47
799:17x 47
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 47 = 141
Therefore, the value for common factors is 141.
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 = 158336140914/(1x141)
LCM = 158336140914/141
LCM = 1122951354
Thus, we can understand that the LCM of 218,921,987,799 is 1122951354.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 218, 921, 987, 799
1. What is the LCM of 218, 921, 987, 799?
Answer: LCM of 218, 921, 987, 799 is 1122951354.
2. How to calculate the LCM of 218, 921, 987, 799?
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 218, 921, 987, 799.
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}.