LCM of 666, 642, 260, 721
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 666, 642, 260, 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 666, 642, 260, 721. So, keep reading to learn more.
Given numbers are 666,642,260,721
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 666,642,260,721 is 6679387260.
Find LCM of 666,642,260,721 with Prime Factorization
| 2 | 666, 642, 260, 721 |
| 3 | 333, 321, 130, 721 |
| 111, 107, 130, 721 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 111 x 107 x 130 x 721 = 6679387260
Therefore, the lowest common multiple of 666,642,260,721 is 6679387260.
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.
666 x 642 x 260 x 721 = 80152647120
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.
666 : 1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333, 666
642 : 1, 2, 3, 6, 107, 214, 321, 642
260 : 1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260
721 : 1, 7, 103, 721
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 666,642,260,721, is 1.
Now, the common factors can be found like this.
666:2x 3x 3x 37
642:2x 3x 107
260:2x 2x 5x 13
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.
2x 2x 3 = 12
Therefore, the value for common factors is 12.
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 = 80152647120/(1x12)
LCM = 80152647120/12
LCM = 6679387260
Thus, we can understand that the LCM of 666,642,260,721 is 6679387260.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 666, 642, 260, 721
1. What is the LCM of 666, 642, 260, 721?
Answer: LCM of 666, 642, 260, 721 is 6679387260.
2. How to calculate the LCM of 666, 642, 260, 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 666, 642, 260, 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}.