LCM of 417, 404, 720, 355
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 417, 404, 720, 355 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, 404, 720, 355. So, keep reading to learn more.
Given numbers are 417,404,720,355
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 417,404,720,355 is 717673680.
Find LCM of 417,404,720,355 with Prime Factorization
| 2 | 417, 404, 720, 355 |
| 2 | 417, 202, 360, 355 |
| 3 | 417, 101, 180, 355 |
| 5 | 139, 101, 60, 355 |
| 139, 101, 12, 71 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 5 x 139 x 101 x 12 x 71 = 717673680
Therefore, the lowest common multiple of 417,404,720,355 is 717673680.
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 404 x 720 x 355 = 43060420800
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
404 : 1, 2, 4, 101, 202, 404
720 : 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720
355 : 1, 5, 71, 355
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 417,404,720,355, is 1.
Now, the common factors can be found like this.
417:3x 139
404:2x 2x 101
720:2x 2x 2x 2x 3x 3x 5
355:5x 71
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 5 = 60
Therefore, the value for common factors is 60.
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 = 43060420800/(1x60)
LCM = 43060420800/60
LCM = 717673680
Thus, we can understand that the LCM of 417,404,720,355 is 717673680.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 417, 404, 720, 355
1. What is the LCM of 417, 404, 720, 355?
Answer: LCM of 417, 404, 720, 355 is 717673680.
2. How to calculate the LCM of 417, 404, 720, 355?
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, 404, 720, 355.
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}.