Find the LCM of 309, 828, 815, 978 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 309, 828, 815, 978. So, keep reading to learn more.
Given numbers are 309,828,815,978
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 309,828,815,978 is 69506460.
Find LCM of 309,828,815,978 with Prime Factorization
2 | 309, 828, 815, 978 |
3 | 309, 414, 815, 489 |
163 | 103, 138, 815, 163 |
103, 138, 5, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 163 x 103 x 138 x 5 x 1 = 69506460
Therefore, the lowest common multiple of 309,828,815,978 is 69506460.
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.
309 x 828 x 815 x 978 = 203931953640
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.
309 : 1, 3, 103, 309
828 : 1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 207, 276, 414, 828
815 : 1, 5, 163, 815
978 : 1, 2, 3, 6, 163, 326, 489, 978
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 309,828,815,978, is 1.
Now, the common factors can be found like this.
309:3x 103
828:2x 2x 3x 3x 23
815:5x 163
978:2x 3x 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 163 = 2934
Therefore, the value for common factors is 2934.
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 = 203931953640/(1x2934)
LCM = 203931953640/2934
LCM = 69506460
Thus, we can understand that the LCM of 309,828,815,978 is 69506460.
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 309, 828, 815, 978?
Answer: LCM of 309, 828, 815, 978 is 69506460.
2. How to calculate the LCM of 309, 828, 815, 978?
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 309, 828, 815, 978.
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}.