Find the LCM of 270, 690, 810, 645 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 270, 690, 810, 645. So, keep reading to learn more.
Given numbers are 270,690,810,645
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 270,690,810,645 is 801090.
Find LCM of 270,690,810,645 with Prime Factorization
2 | 270, 690, 810, 645 |
3 | 135, 345, 405, 645 |
3 | 45, 115, 135, 215 |
3 | 15, 115, 45, 215 |
5 | 5, 115, 15, 215 |
1, 23, 3, 43 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 3 x 3 x 5 x 1 x 23 x 3 x 43 = 801090
Therefore, the lowest common multiple of 270,690,810,645 is 801090.
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.
270 x 690 x 810 x 645 = 97332435000
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.
270 : 1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270
690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
810 : 1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810
645 : 1, 3, 5, 15, 43, 129, 215, 645
15 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 270,690,810,645, is 15.
Now, the common factors can be found like this.
270:2x 3x 3x 3x 5
690:2x 3x 5x 23
810:2x 3x 3x 3x 3x 5
645:3x 5x 43
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 3x 3x 3x 3x 5x 5 = 8100
Therefore, the value for common factors is 8100.
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 = 97332435000/(15x8100)
LCM = 97332435000/121500
LCM = 801090
Thus, we can understand that the LCM of 270,690,810,645 is 801090.
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 270, 690, 810, 645?
Answer: LCM of 270, 690, 810, 645 is 801090.
2. How to calculate the LCM of 270, 690, 810, 645?
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 270, 690, 810, 645.
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}.