LCM of 520, 731, 128, 197
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 520, 731, 128, 197 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 520, 731, 128, 197. So, keep reading to learn more.
Given numbers are 520,731,128,197
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 520,731,128,197 is 1198138240.
Find LCM of 520,731,128,197 with Prime Factorization
| 2 | 520, 731, 128, 197 |
| 2 | 260, 731, 64, 197 |
| 2 | 130, 731, 32, 197 |
| 65, 731, 16, 197 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 65 x 731 x 16 x 197 = 1198138240
Therefore, the lowest common multiple of 520,731,128,197 is 1198138240.
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.
520 x 731 x 128 x 197 = 9585105920
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.
520 : 1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520
731 : 1, 17, 43, 731
128 : 1, 2, 4, 8, 16, 32, 64, 128
197 : 1, 197
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 520,731,128,197, is 1.
Now, the common factors can be found like this.
520:2x 2x 2x 5x 13
731:17x 43
128:2x 2x 2x 2x 2x 2x 2
197:197
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 2 = 8
Therefore, the value for common factors is 8.
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 = 9585105920/(1x8)
LCM = 9585105920/8
LCM = 1198138240
Thus, we can understand that the LCM of 520,731,128,197 is 1198138240.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 520, 731, 128, 197
1. What is the LCM of 520, 731, 128, 197?
Answer: LCM of 520, 731, 128, 197 is 1198138240.
2. How to calculate the LCM of 520, 731, 128, 197?
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 520, 731, 128, 197.
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}.