Find the LCM of 780, 715, 913, 661 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 780, 715, 913, 661. So, keep reading to learn more.
Given numbers are 780,715,913,661
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 780,715,913,661 is 470724540.
Find LCM of 780,715,913,661 with Prime Factorization
5 | 780, 715, 913, 661 |
11 | 156, 143, 913, 661 |
13 | 156, 13, 83, 661 |
12, 1, 83, 661 |
Multiply the prime numbers at the bottom and the left side.
5 x 11 x 13 x 12 x 1 x 83 x 661 = 470724540
Therefore, the lowest common multiple of 780,715,913,661 is 470724540.
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.
780 x 715 x 913 x 661 = 336568046100
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.
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
715 : 1, 5, 11, 13, 55, 65, 143, 715
913 : 1, 11, 83, 913
661 : 1, 661
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 780,715,913,661, is 1.
Now, the common factors can be found like this.
780:2x 2x 3x 5x 13
715:5x 11x 13
913:11x 83
661:661
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
5x 11x 13 = 715
Therefore, the value for common factors is 715.
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 = 336568046100/(1x715)
LCM = 336568046100/715
LCM = 470724540
Thus, we can understand that the LCM of 780,715,913,661 is 470724540.
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 780, 715, 913, 661?
Answer: LCM of 780, 715, 913, 661 is 470724540.
2. How to calculate the LCM of 780, 715, 913, 661?
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 780, 715, 913, 661.
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}.