LCM of 111, 691, 618, 721
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 111, 691, 618, 721 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 111, 691, 618, 721. So, keep reading to learn more.
Given numbers are 111,691,618,721
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 111,691,618,721 is 110602842.
Find LCM of 111,691,618,721 with Prime Factorization
| 3 | 111, 691, 618, 721 |
| 103 | 37, 691, 206, 721 |
| 37, 691, 2, 7 |
Multiply the prime numbers at the bottom and the left side.
3 x 103 x 37 x 691 x 2 x 7 = 110602842
Therefore, the lowest common multiple of 111,691,618,721 is 110602842.
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.
111 x 691 x 618 x 721 = 34176278178
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.
111 : 1, 3, 37, 111
691 : 1, 691
618 : 1, 2, 3, 6, 103, 206, 309, 618
721 : 1, 7, 103, 721
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 111,691,618,721, is 1.
Now, the common factors can be found like this.
111:3x 37
691:691
618:2x 3x 103
721:7x 103
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 103 = 309
Therefore, the value for common factors is 309.
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 = 34176278178/(1x309)
LCM = 34176278178/309
LCM = 110602842
Thus, we can understand that the LCM of 111,691,618,721 is 110602842.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 111, 691, 618, 721
1. What is the LCM of 111, 691, 618, 721?
Answer: LCM of 111, 691, 618, 721 is 110602842.
2. How to calculate the LCM of 111, 691, 618, 721?
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 111, 691, 618, 721.
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}.