LCM of 138, 831, 305, 554
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 138, 831, 305, 554 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 138, 831, 305, 554. So, keep reading to learn more.
Given numbers are 138,831,305,554
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 138,831,305,554 is 11658930.
Find LCM of 138,831,305,554 with Prime Factorization
| 2 | 138, 831, 305, 554 |
| 3 | 69, 831, 305, 277 |
| 277 | 23, 277, 305, 277 |
| 23, 1, 305, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 277 x 23 x 1 x 305 x 1 = 11658930
Therefore, the lowest common multiple of 138,831,305,554 is 11658930.
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.
138 x 831 x 305 x 554 = 19377141660
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.
138 : 1, 2, 3, 6, 23, 46, 69, 138
831 : 1, 3, 277, 831
305 : 1, 5, 61, 305
554 : 1, 2, 277, 554
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 138,831,305,554, is 1.
Now, the common factors can be found like this.
138:2x 3x 23
831:3x 277
305:5x 61
554:2x 277
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 277 = 1662
Therefore, the value for common factors is 1662.
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 = 19377141660/(1x1662)
LCM = 19377141660/1662
LCM = 11658930
Thus, we can understand that the LCM of 138,831,305,554 is 11658930.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 138, 831, 305, 554
1. What is the LCM of 138, 831, 305, 554?
Answer: LCM of 138, 831, 305, 554 is 11658930.
2. How to calculate the LCM of 138, 831, 305, 554?
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 138, 831, 305, 554.
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}.