LCM of 495, 665, 840, 720
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 495, 665, 840, 720 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 495, 665, 840, 720. So, keep reading to learn more.
Given numbers are 495,665,840,720
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 495,665,840,720 is 1053360.
Find LCM of 495,665,840,720 with Prime Factorization
| 2 | 495, 665, 840, 720 |
| 2 | 495, 665, 420, 360 |
| 2 | 495, 665, 210, 180 |
| 3 | 495, 665, 105, 90 |
| 3 | 165, 665, 35, 30 |
| 5 | 55, 665, 35, 10 |
| 7 | 11, 133, 7, 2 |
| 11, 19, 1, 2 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 3 x 3 x 5 x 7 x 11 x 19 x 1 x 2 = 1053360
Therefore, the lowest common multiple of 495,665,840,720 is 1053360.
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.
495 x 665 x 840 x 720 = 199085040000
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.
495 : 1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495
665 : 1, 5, 7, 19, 35, 95, 133, 665
840 : 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840
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
5 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 495,665,840,720, is 5.
Now, the common factors can be found like this.
495:3x 3x 5x 11
665:5x 7x 19
840:2x 2x 2x 3x 5x 7
720:2x 2x 2x 2x 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 2x 2x 3x 3x 3x 5x 5x 7 = 37800
Therefore, the value for common factors is 37800.
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 = 199085040000/(5x37800)
LCM = 199085040000/189000
LCM = 1053360
Thus, we can understand that the LCM of 495,665,840,720 is 1053360.
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FAQs on LCM of 495, 665, 840, 720
1. What is the LCM of 495, 665, 840, 720?
Answer: LCM of 495, 665, 840, 720 is 1053360.
2. How to calculate the LCM of 495, 665, 840, 720?
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 495, 665, 840, 720.
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}.