LCM of 856, 771, 382, 642
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 856, 771, 382, 642 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 856, 771, 382, 642. So, keep reading to learn more.
Given numbers are 856,771,382,642
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 856,771,382,642 is 126055416.
Find LCM of 856,771,382,642 with Prime Factorization
| 2 | 856, 771, 382, 642 |
| 3 | 428, 771, 191, 321 |
| 107 | 428, 257, 191, 107 |
| 4, 257, 191, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 107 x 4 x 257 x 191 x 1 = 126055416
Therefore, the lowest common multiple of 856,771,382,642 is 126055416.
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.
856 x 771 x 382 x 642 = 161855154144
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.
856 : 1, 2, 4, 8, 107, 214, 428, 856
771 : 1, 3, 257, 771
382 : 1, 2, 191, 382
642 : 1, 2, 3, 6, 107, 214, 321, 642
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 856,771,382,642, is 1.
Now, the common factors can be found like this.
856:2x 2x 2x 107
771:3x 257
382:2x 191
642:2x 3x 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 3x 107 = 1284
Therefore, the value for common factors is 1284.
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 = 161855154144/(1x1284)
LCM = 161855154144/1284
LCM = 126055416
Thus, we can understand that the LCM of 856,771,382,642 is 126055416.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 856, 771, 382, 642
1. What is the LCM of 856, 771, 382, 642?
Answer: LCM of 856, 771, 382, 642 is 126055416.
2. How to calculate the LCM of 856, 771, 382, 642?
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 856, 771, 382, 642.
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}.