LCM of 642, 428, 579, 193
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 642, 428, 579, 193 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 642, 428, 579, 193. So, keep reading to learn more.
Given numbers are 642,428,579,193
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 642,428,579,193 is 247812.
Find LCM of 642,428,579,193 with Prime Factorization
| 2 | 642, 428, 579, 193 |
| 3 | 321, 214, 579, 193 |
| 107 | 107, 214, 193, 193 |
| 193 | 1, 2, 193, 193 |
| 1, 2, 1, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 107 x 193 x 1 x 2 x 1 x 1 = 247812
Therefore, the lowest common multiple of 642,428,579,193 is 247812.
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.
642 x 428 x 579 x 193 = 30705393672
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.
642 : 1, 2, 3, 6, 107, 214, 321, 642
428 : 1, 2, 4, 107, 214, 428
579 : 1, 3, 193, 579
193 : 1, 193
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 642,428,579,193, is 1.
Now, the common factors can be found like this.
642:2x 3x 107
428:2x 2x 107
579:3x 193
193:193
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3x 107x 193 = 123906
Therefore, the value for common factors is 123906.
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 = 30705393672/(1x123906)
LCM = 30705393672/123906
LCM = 247812
Thus, we can understand that the LCM of 642,428,579,193 is 247812.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 642, 428, 579, 193
1. What is the LCM of 642, 428, 579, 193?
Answer: LCM of 642, 428, 579, 193 is 247812.
2. How to calculate the LCM of 642, 428, 579, 193?
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 642, 428, 579, 193.
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}.