LCM of 312, 105, 820, 947
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 312, 105, 820, 947 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 312, 105, 820, 947. So, keep reading to learn more.
Given numbers are 312,105,820,947
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 312,105,820,947 is 423990840.
Find LCM of 312,105,820,947 with Prime Factorization
| 2 | 312, 105, 820, 947 |
| 2 | 156, 105, 410, 947 |
| 3 | 78, 105, 205, 947 |
| 5 | 26, 35, 205, 947 |
| 26, 7, 41, 947 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 5 x 26 x 7 x 41 x 947 = 423990840
Therefore, the lowest common multiple of 312,105,820,947 is 423990840.
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.
312 x 105 x 820 x 947 = 25439450400
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.
312 : 1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312
105 : 1, 3, 5, 7, 15, 21, 35, 105
820 : 1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820
947 : 1, 947
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 312,105,820,947, is 1.
Now, the common factors can be found like this.
312:2x 2x 2x 3x 13
105:3x 5x 7
820:2x 2x 5x 41
947:947
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 5 = 60
Therefore, the value for common factors is 60.
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 = 25439450400/(1x60)
LCM = 25439450400/60
LCM = 423990840
Thus, we can understand that the LCM of 312,105,820,947 is 423990840.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 312, 105, 820, 947
1. What is the LCM of 312, 105, 820, 947?
Answer: LCM of 312, 105, 820, 947 is 423990840.
2. How to calculate the LCM of 312, 105, 820, 947?
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 312, 105, 820, 947.
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}.