LCM of 574, 945, 645, 642
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 574, 945, 645, 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 574, 945, 645, 642. So, keep reading to learn more.
Given numbers are 574,945,645,642
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 574,945,645,642 is 356531490.
Find LCM of 574,945,645,642 with Prime Factorization
| 2 | 574, 945, 645, 642 |
| 3 | 287, 945, 645, 321 |
| 5 | 287, 315, 215, 107 |
| 7 | 287, 63, 43, 107 |
| 41, 9, 43, 107 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 5 x 7 x 41 x 9 x 43 x 107 = 356531490
Therefore, the lowest common multiple of 574,945,645,642 is 356531490.
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.
574 x 945 x 645 x 642 = 224614838700
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.
574 : 1, 2, 7, 14, 41, 82, 287, 574
945 : 1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945
645 : 1, 3, 5, 15, 43, 129, 215, 645
642 : 1, 2, 3, 6, 107, 214, 321, 642
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 574,945,645,642, is 1.
Now, the common factors can be found like this.
574:2x 7x 41
945:3x 3x 3x 5x 7
645:3x 5x 43
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 3x 3x 5x 7 = 630
Therefore, the value for common factors is 630.
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 = 224614838700/(1x630)
LCM = 224614838700/630
LCM = 356531490
Thus, we can understand that the LCM of 574,945,645,642 is 356531490.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 574, 945, 645, 642
1. What is the LCM of 574, 945, 645, 642?
Answer: LCM of 574, 945, 645, 642 is 356531490.
2. How to calculate the LCM of 574, 945, 645, 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 574, 945, 645, 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}.