LCM of 396, 720, 646, 300
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 396, 720, 646, 300 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 396, 720, 646, 300. So, keep reading to learn more.
Given numbers are 396,720,646,300
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 396,720,646,300 is 12790800.
Find LCM of 396,720,646,300 with Prime Factorization
| 2 | 396, 720, 646, 300 |
| 2 | 198, 360, 323, 150 |
| 3 | 99, 180, 323, 75 |
| 3 | 33, 60, 323, 25 |
| 5 | 11, 20, 323, 25 |
| 11, 4, 323, 5 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 3 x 5 x 11 x 4 x 323 x 5 = 12790800
Therefore, the lowest common multiple of 396,720,646,300 is 12790800.
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.
396 x 720 x 646 x 300 = 55256256000
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.
396 : 1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 396
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
646 : 1, 2, 17, 19, 34, 38, 323, 646
300 : 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 300
2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 396,720,646,300, is 2.
Now, the common factors can be found like this.
396:2x 2x 3x 3x 11
720:2x 2x 2x 2x 3x 3x 5
646:2x 17x 19
300:2x 2x 3x 5x 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 2x 3x 3x 3x 5 = 2160
Therefore, the value for common factors is 2160.
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 = 55256256000/(2x2160)
LCM = 55256256000/4320
LCM = 12790800
Thus, we can understand that the LCM of 396,720,646,300 is 12790800.
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FAQs on LCM of 396, 720, 646, 300
1. What is the LCM of 396, 720, 646, 300?
Answer: LCM of 396, 720, 646, 300 is 12790800.
2. How to calculate the LCM of 396, 720, 646, 300?
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 396, 720, 646, 300.
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}.