Find the LCM of 810, 785, 291, 780 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 810, 785, 291, 780. So, keep reading to learn more.
Given numbers are 810,785,291,780
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 810,785,291,780 is 320722740.
Find LCM of 810,785,291,780 with Prime Factorization
2 | 810, 785, 291, 780 |
3 | 405, 785, 291, 390 |
5 | 135, 785, 97, 130 |
27, 157, 97, 26 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 5 x 27 x 157 x 97 x 26 = 320722740
Therefore, the lowest common multiple of 810,785,291,780 is 320722740.
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.
810 x 785 x 291 x 780 = 144325233000
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.
810 : 1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810
785 : 1, 5, 157, 785
291 : 1, 3, 97, 291
780 : 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 810,785,291,780, is 1.
Now, the common factors can be found like this.
810:2x 3x 3x 3x 3x 5
785:5x 157
291:3x 97
780:2x 2x 3x 5x 13
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3x 3x 5x 5 = 450
Therefore, the value for common factors is 450.
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 = 144325233000/(1x450)
LCM = 144325233000/450
LCM = 320722740
Thus, we can understand that the LCM of 810,785,291,780 is 320722740.
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 810, 785, 291, 780?
Answer: LCM of 810, 785, 291, 780 is 320722740.
2. How to calculate the LCM of 810, 785, 291, 780?
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 810, 785, 291, 780.
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}.