LCM of 720, 153, 657, 957
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 720, 153, 657, 957 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 720, 153, 657, 957. So, keep reading to learn more.
Given numbers are 720,153,657,957
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 720,153,657,957 is 285032880.
Find LCM of 720,153,657,957 with Prime Factorization
| 3 | 720, 153, 657, 957 |
| 3 | 240, 51, 219, 319 |
| 80, 17, 73, 319 |
Multiply the prime numbers at the bottom and the left side.
3 x 3 x 80 x 17 x 73 x 319 = 285032880
Therefore, the lowest common multiple of 720,153,657,957 is 285032880.
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.
720 x 153 x 657 x 957 = 69262989840
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.
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
153 : 1, 3, 9, 17, 51, 153
657 : 1, 3, 9, 73, 219, 657
957 : 1, 3, 11, 29, 33, 87, 319, 957
3 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 720,153,657,957, is 3.
Now, the common factors can be found like this.
720:2x 2x 2x 2x 3x 3x 5
153:3x 3x 17
657:3x 3x 73
957:3x 11x 29
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 3x 3x 3 = 81
Therefore, the value for common factors is 81.
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 = 69262989840/(3x81)
LCM = 69262989840/243
LCM = 285032880
Thus, we can understand that the LCM of 720,153,657,957 is 285032880.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 720, 153, 657, 957
1. What is the LCM of 720, 153, 657, 957?
Answer: LCM of 720, 153, 657, 957 is 285032880.
2. How to calculate the LCM of 720, 153, 657, 957?
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 720, 153, 657, 957.
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}.