LCM of 417, 558, 645, 605
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 417, 558, 645, 605 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 417, 558, 645, 605. So, keep reading to learn more.
Given numbers are 417,558,645,605
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 417,558,645,605 is 2017775430.
Find LCM of 417,558,645,605 with Prime Factorization
| 3 | 417, 558, 645, 605 |
| 5 | 139, 186, 215, 605 |
| 139, 186, 43, 121 |
Multiply the prime numbers at the bottom and the left side.
3 x 5 x 139 x 186 x 43 x 121 = 2017775430
Therefore, the lowest common multiple of 417,558,645,605 is 2017775430.
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.
417 x 558 x 645 x 605 = 90799894350
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.
417 : 1, 3, 139, 417
558 : 1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 279, 558
645 : 1, 3, 5, 15, 43, 129, 215, 645
605 : 1, 5, 11, 55, 121, 605
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 417,558,645,605, is 1.
Now, the common factors can be found like this.
417:3x 139
558:2x 3x 3x 31
645:3x 5x 43
605:5x 11x 11
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 3x 5 = 45
Therefore, the value for common factors is 45.
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 = 90799894350/(1x45)
LCM = 90799894350/45
LCM = 2017775430
Thus, we can understand that the LCM of 417,558,645,605 is 2017775430.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 417, 558, 645, 605
1. What is the LCM of 417, 558, 645, 605?
Answer: LCM of 417, 558, 645, 605 is 2017775430.
2. How to calculate the LCM of 417, 558, 645, 605?
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 417, 558, 645, 605.
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}.