LCM of 480, 309, 720, 945
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 480, 309, 720, 945 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 480, 309, 720, 945. So, keep reading to learn more.
Given numbers are 480,309,720,945
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 480,309,720,945 is 3114720.
Find LCM of 480,309,720,945 with Prime Factorization
| 2 | 480, 309, 720, 945 |
| 2 | 240, 309, 360, 945 |
| 2 | 120, 309, 180, 945 |
| 2 | 60, 309, 90, 945 |
| 3 | 30, 309, 45, 945 |
| 3 | 10, 103, 15, 315 |
| 5 | 10, 103, 5, 105 |
| 2, 103, 1, 21 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 2 x 3 x 3 x 5 x 2 x 103 x 1 x 21 = 3114720
Therefore, the lowest common multiple of 480,309,720,945 is 3114720.
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.
480 x 309 x 720 x 945 = 100916928000
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.
480 : 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480
309 : 1, 3, 103, 309
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
945 : 1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945
3 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 480,309,720,945, is 3.
Now, the common factors can be found like this.
480:2x 2x 2x 2x 2x 3x 5
309:3x 103
720:2x 2x 2x 2x 3x 3x 5
945:3x 3x 3x 5x 7
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 5x 5 = 10800
Therefore, the value for common factors is 10800.
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 = 100916928000/(3x10800)
LCM = 100916928000/32400
LCM = 3114720
Thus, we can understand that the LCM of 480,309,720,945 is 3114720.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 480, 309, 720, 945
1. What is the LCM of 480, 309, 720, 945?
Answer: LCM of 480, 309, 720, 945 is 3114720.
2. How to calculate the LCM of 480, 309, 720, 945?
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 480, 309, 720, 945.
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}.