LCM of 390, 915, 842, 125
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 390, 915, 842, 125 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 390, 915, 842, 125. So, keep reading to learn more.
Given numbers are 390,915,842,125
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 390,915,842,125 is 250389750.
Find LCM of 390,915,842,125 with Prime Factorization
| 2 | 390, 915, 842, 125 |
| 3 | 195, 915, 421, 125 |
| 5 | 65, 305, 421, 125 |
| 13, 61, 421, 25 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 5 x 13 x 61 x 421 x 25 = 250389750
Therefore, the lowest common multiple of 390,915,842,125 is 250389750.
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.
390 x 915 x 842 x 125 = 37558462500
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.
390 : 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390
915 : 1, 3, 5, 15, 61, 183, 305, 915
842 : 1, 2, 421, 842
125 : 1, 5, 25, 125
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 390,915,842,125, is 1.
Now, the common factors can be found like this.
390:2x 3x 5x 13
915:3x 5x 61
842:2x 421
125:5x 5x 5
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 5x 5 = 150
Therefore, the value for common factors is 150.
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 = 37558462500/(1x150)
LCM = 37558462500/150
LCM = 250389750
Thus, we can understand that the LCM of 390,915,842,125 is 250389750.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 390, 915, 842, 125
1. What is the LCM of 390, 915, 842, 125?
Answer: LCM of 390, 915, 842, 125 is 250389750.
2. How to calculate the LCM of 390, 915, 842, 125?
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 390, 915, 842, 125.
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}.