LCM of 128, 856, 720, 432, 682
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 128, 856, 720, 432, 682 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 128, 856, 720, 432, 682. So, keep reading to learn more.
Given numbers are 128,856,720,432,682
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 128,856,720,432,682 is 630495360.
Find LCM of 128,856,720,432,682 with Prime Factorization
| 2 | 128, 856, 720, 432, 682 |
| 2 | 64, 428, 360, 216, 341 |
| 2 | 32, 214, 180, 108, 341 |
| 2 | 16, 107, 90, 54, 341 |
| 3 | 8, 107, 45, 27, 341 |
| 3 | 8, 107, 15, 9, 341 |
| 8, 107, 5, 3, 341 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 2 x 3 x 3 x 8 x 107 x 5 x 3 x 341 = 630495360
Therefore, the lowest common multiple of 128,856,720,432,682 is 630495360.
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.
128 x 856 x 720 x 432 x 682 = 23242580951040
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.
128 : 1, 2, 4, 8, 16, 32, 64, 128
856 : 1, 2, 4, 8, 107, 214, 428, 856
720 : 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720
432 : 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 144, 216, 432
682 : 1, 2, 11, 22, 31, 62, 341, 682
2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 128,856,720,432,682, is 2.
Now, the common factors can be found like this.
128:2x 2x 2x 2x 2x 2x 2
856:2x 2x 2x 107
720:2x 2x 2x 2x 3x 3x 5
432:2x 2x 2x 2x 3x 3x 3
682:2x 11x 31
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 2x 2x 2x 2x 2x 2x 2x 3x 3 = 18432
Therefore, the value for common factors is 18432.
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 = 23242580951040/(2x18432)
LCM = 23242580951040/36864
LCM = 630495360
Thus, we can understand that the LCM of 128,856,720,432,682 is 630495360.
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FAQs on LCM of 128, 856, 720, 432, 682
1. What is the LCM of 128, 856, 720, 432, 682?
Answer: LCM of 128, 856, 720, 432, 682 is 630495360.
2. How to calculate the LCM of 128, 856, 720, 432, 682?
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 128, 856, 720, 432, 682.
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}.