LCM of 428, 868, 787, 716
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 428, 868, 787, 716 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 428, 868, 787, 716. So, keep reading to learn more.
Given numbers are 428,868,787,716
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 428,868,787,716 is 13083720748.
Find LCM of 428,868,787,716 with Prime Factorization
| 2 | 428, 868, 787, 716 |
| 2 | 214, 434, 787, 358 |
| 107, 217, 787, 179 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 107 x 217 x 787 x 179 = 13083720748
Therefore, the lowest common multiple of 428,868,787,716 is 13083720748.
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.
428 x 868 x 787 x 716 = 209339531968
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.
428 : 1, 2, 4, 107, 214, 428
868 : 1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868
787 : 1, 787
716 : 1, 2, 4, 179, 358, 716
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 428,868,787,716, is 1.
Now, the common factors can be found like this.
428:2x 2x 107
868:2x 2x 7x 31
787:787
716:2x 2x 179
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 2 = 16
Therefore, the value for common factors is 16.
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 = 209339531968/(1x16)
LCM = 209339531968/16
LCM = 13083720748
Thus, we can understand that the LCM of 428,868,787,716 is 13083720748.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 428, 868, 787, 716
1. What is the LCM of 428, 868, 787, 716?
Answer: LCM of 428, 868, 787, 716 is 13083720748.
2. How to calculate the LCM of 428, 868, 787, 716?
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 428, 868, 787, 716.
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}.