LCM of 126, 540, 120, 788
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 126, 540, 120, 788 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 126, 540, 120, 788. So, keep reading to learn more.
Given numbers are 126,540,120,788
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 126,540,120,788 is 1489320.
Find LCM of 126,540,120,788 with Prime Factorization
| 2 | 126, 540, 120, 788 |
| 2 | 63, 270, 60, 394 |
| 3 | 63, 135, 30, 197 |
| 3 | 21, 45, 10, 197 |
| 5 | 7, 15, 10, 197 |
| 7, 3, 2, 197 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 3 x 5 x 7 x 3 x 2 x 197 = 1489320
Therefore, the lowest common multiple of 126,540,120,788 is 1489320.
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.
126 x 540 x 120 x 788 = 6433862400
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.
126 : 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126
540 : 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540
120 : 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120
788 : 1, 2, 4, 197, 394, 788
2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 126,540,120,788, is 2.
Now, the common factors can be found like this.
126:2x 3x 3x 7
540:2x 2x 3x 3x 3x 5
120:2x 2x 2x 3x 5
788:2x 2x 197
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 2x 2x 3x 3x 3x 5 = 2160
Therefore, the value for common factors is 2160.
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 = 6433862400/(2x2160)
LCM = 6433862400/4320
LCM = 1489320
Thus, we can understand that the LCM of 126,540,120,788 is 1489320.
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FAQs on LCM of 126, 540, 120, 788
1. What is the LCM of 126, 540, 120, 788?
Answer: LCM of 126, 540, 120, 788 is 1489320.
2. How to calculate the LCM of 126, 540, 120, 788?
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 126, 540, 120, 788.
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}.