LCM of 471, 687, 680, 428
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 471, 687, 680, 428 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 471, 687, 680, 428. So, keep reading to learn more.
Given numbers are 471,687,680,428
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 471,687,680,428 is 7847820840.
Find LCM of 471,687,680,428 with Prime Factorization
| 2 | 471, 687, 680, 428 |
| 2 | 471, 687, 340, 214 |
| 3 | 471, 687, 170, 107 |
| 157, 229, 170, 107 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 157 x 229 x 170 x 107 = 7847820840
Therefore, the lowest common multiple of 471,687,680,428 is 7847820840.
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.
471 x 687 x 680 x 428 = 94173850080
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.
471 : 1, 3, 157, 471
687 : 1, 3, 229, 687
680 : 1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680
428 : 1, 2, 4, 107, 214, 428
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 471,687,680,428, is 1.
Now, the common factors can be found like this.
471:3x 157
687:3x 229
680:2x 2x 2x 5x 17
428:2x 2x 107
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 3 = 12
Therefore, the value for common factors is 12.
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 = 94173850080/(1x12)
LCM = 94173850080/12
LCM = 7847820840
Thus, we can understand that the LCM of 471,687,680,428 is 7847820840.
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FAQs on LCM of 471, 687, 680, 428
1. What is the LCM of 471, 687, 680, 428?
Answer: LCM of 471, 687, 680, 428 is 7847820840.
2. How to calculate the LCM of 471, 687, 680, 428?
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 471, 687, 680, 428.
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}.