LCM of 505, 216, 391, 810
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 505, 216, 391, 810 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 505, 216, 391, 810. So, keep reading to learn more.
Given numbers are 505,216,391,810
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 505,216,391,810 is 127950840.
Find LCM of 505,216,391,810 with Prime Factorization
| 2 | 505, 216, 391, 810 |
| 3 | 505, 108, 391, 405 |
| 3 | 505, 36, 391, 135 |
| 3 | 505, 12, 391, 45 |
| 5 | 505, 4, 391, 15 |
| 101, 4, 391, 3 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 3 x 3 x 5 x 101 x 4 x 391 x 3 = 127950840
Therefore, the lowest common multiple of 505,216,391,810 is 127950840.
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.
505 x 216 x 391 x 810 = 34546726800
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.
505 : 1, 5, 101, 505
216 : 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216
391 : 1, 17, 23, 391
810 : 1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 505,216,391,810, is 1.
Now, the common factors can be found like this.
505:5x 101
216:2x 2x 2x 3x 3x 3
391:17x 23
810:2x 3x 3x 3x 3x 5
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 3x 5 = 270
Therefore, the value for common factors is 270.
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 = 34546726800/(1x270)
LCM = 34546726800/270
LCM = 127950840
Thus, we can understand that the LCM of 505,216,391,810 is 127950840.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 505, 216, 391, 810
1. What is the LCM of 505, 216, 391, 810?
Answer: LCM of 505, 216, 391, 810 is 127950840.
2. How to calculate the LCM of 505, 216, 391, 810?
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 505, 216, 391, 810.
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}.