LCM of 442, 726, 660, 642
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 442, 726, 660, 642 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 442, 726, 660, 642. So, keep reading to learn more.
Given numbers are 442,726,660,642
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 442,726,660,642 is 171677220.
Find LCM of 442,726,660,642 with Prime Factorization
| 2 | 442, 726, 660, 642 |
| 3 | 221, 363, 330, 321 |
| 11 | 221, 121, 110, 107 |
| 221, 11, 10, 107 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 11 x 221 x 11 x 10 x 107 = 171677220
Therefore, the lowest common multiple of 442,726,660,642 is 171677220.
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.
442 x 726 x 660 x 642 = 135968358240
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.
442 : 1, 2, 13, 17, 26, 34, 221, 442
726 : 1, 2, 3, 6, 11, 22, 33, 66, 121, 242, 363, 726
660 : 1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660
642 : 1, 2, 3, 6, 107, 214, 321, 642
2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 442,726,660,642, is 2.
Now, the common factors can be found like this.
442:2x 13x 17
726:2x 3x 11x 11
660:2x 2x 3x 5x 11
642:2x 3x 107
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 3x 3x 11 = 396
Therefore, the value for common factors is 396.
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 = 135968358240/(2x396)
LCM = 135968358240/792
LCM = 171677220
Thus, we can understand that the LCM of 442,726,660,642 is 171677220.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 442, 726, 660, 642
1. What is the LCM of 442, 726, 660, 642?
Answer: LCM of 442, 726, 660, 642 is 171677220.
2. How to calculate the LCM of 442, 726, 660, 642?
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 442, 726, 660, 642.
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}.