LCM of 291, 921, 291, 687
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 291, 921, 291, 687 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 291, 921, 291, 687. So, keep reading to learn more.
Given numbers are 291,921,291,687
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 291,921,291,687 is 20458173.
Find LCM of 291,921,291,687 with Prime Factorization
| 3 | 291, 921, 291, 687 |
| 97 | 97, 307, 97, 229 |
| 1, 307, 1, 229 |
Multiply the prime numbers at the bottom and the left side.
3 x 97 x 1 x 307 x 1 x 229 = 20458173
Therefore, the lowest common multiple of 291,921,291,687 is 20458173.
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.
291 x 921 x 291 x 687 = 53579955087
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.
291 : 1, 3, 97, 291
921 : 1, 3, 307, 921
291 : 1, 3, 97, 291
687 : 1, 3, 229, 687
3 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 291,921,291,687, is 3.
Now, the common factors can be found like this.
291:3x 97
921:3x 307
291:3x 97
687:3x 229
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 3x 97 = 873
Therefore, the value for common factors is 873.
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 = 53579955087/(3x873)
LCM = 53579955087/2619
LCM = 20458173
Thus, we can understand that the LCM of 291,921,291,687 is 20458173.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 291, 921, 291, 687
1. What is the LCM of 291, 921, 291, 687?
Answer: LCM of 291, 921, 291, 687 is 20458173.
2. How to calculate the LCM of 291, 921, 291, 687?
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 291, 921, 291, 687.
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}.