LCM of 978, 207, 828, 815
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 978, 207, 828, 815 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 978, 207, 828, 815. So, keep reading to learn more.
Given numbers are 978,207,828,815
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 978,207,828,815 is 674820.
Find LCM of 978,207,828,815 with Prime Factorization
| 2 | 978, 207, 828, 815 |
| 3 | 489, 207, 414, 815 |
| 3 | 163, 69, 138, 815 |
| 23 | 163, 23, 46, 815 |
| 163 | 163, 1, 2, 815 |
| 1, 1, 2, 5 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 3 x 23 x 163 x 1 x 1 x 2 x 5 = 674820
Therefore, the lowest common multiple of 978,207,828,815 is 674820.
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.
978 x 207 x 828 x 815 = 136614609720
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.
978 : 1, 2, 3, 6, 163, 326, 489, 978
207 : 1, 3, 9, 23, 69, 207
828 : 1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 207, 276, 414, 828
815 : 1, 5, 163, 815
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 978,207,828,815, is 1.
Now, the common factors can be found like this.
978:2x 3x 163
207:3x 3x 23
828:2x 2x 3x 3x 23
815:5x 163
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 3x 23x 163 = 202446
Therefore, the value for common factors is 202446.
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 = 136614609720/(1x202446)
LCM = 136614609720/202446
LCM = 674820
Thus, we can understand that the LCM of 978,207,828,815 is 674820.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 978, 207, 828, 815
1. What is the LCM of 978, 207, 828, 815?
Answer: LCM of 978, 207, 828, 815 is 674820.
2. How to calculate the LCM of 978, 207, 828, 815?
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 978, 207, 828, 815.
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}.