LCM of 720, 855, 764, 921, 556
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 720, 855, 764, 921, 556 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, 855, 764, 921, 556. So, keep reading to learn more.
Given numbers are 720,855,764,921,556
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 720,855,764,921,556 is 111499428240.
Find LCM of 720,855,764,921,556 with Prime Factorization
| 2 | 720, 855, 764, 921, 556 |
| 2 | 360, 855, 382, 921, 278 |
| 3 | 180, 855, 191, 921, 139 |
| 3 | 60, 285, 191, 307, 139 |
| 5 | 20, 95, 191, 307, 139 |
| 4, 19, 191, 307, 139 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 3 x 5 x 4 x 19 x 191 x 307 x 139 = 111499428240
Therefore, the lowest common multiple of 720,855,764,921,556 is 111499428240.
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 855 x 764 x 921 x 556 = 240838764998400
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
855 : 1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855
764 : 1, 2, 4, 191, 382, 764
921 : 1, 3, 307, 921
556 : 1, 2, 4, 139, 278, 556
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 720,855,764,921,556, is 1.
Now, the common factors can be found like this.
720:2x 2x 2x 2x 3x 3x 5
855:3x 3x 5x 19
764:2x 2x 191
921:3x 307
556:2x 2x 139
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 5 = 2160
Therefore, the value for common factors is 2160.
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 = 240838764998400/(1x2160)
LCM = 240838764998400/2160
LCM = 111499428240
Thus, we can understand that the LCM of 720,855,764,921,556 is 111499428240.
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, 855, 764, 921, 556
1. What is the LCM of 720, 855, 764, 921, 556?
Answer: LCM of 720, 855, 764, 921, 556 is 111499428240.
2. How to calculate the LCM of 720, 855, 764, 921, 556?
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, 855, 764, 921, 556.
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}.