LCM of 866, 728, 154, 686
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 866, 728, 154, 686 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 866, 728, 154, 686. So, keep reading to learn more.
Given numbers are 866,728,154,686
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 866,728,154,686 is 169905736.
Find LCM of 866,728,154,686 with Prime Factorization
| 2 | 866, 728, 154, 686 |
| 7 | 433, 364, 77, 343 |
| 433, 52, 11, 49 |
Multiply the prime numbers at the bottom and the left side.
2 x 7 x 433 x 52 x 11 x 49 = 169905736
Therefore, the lowest common multiple of 866,728,154,686 is 169905736.
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.
866 x 728 x 154 x 686 = 66603048512
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.
866 : 1, 2, 433, 866
728 : 1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728
154 : 1, 2, 7, 11, 14, 22, 77, 154
686 : 1, 2, 7, 14, 49, 98, 343, 686
2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 866,728,154,686, is 2.
Now, the common factors can be found like this.
866:2x 433
728:2x 2x 2x 7x 13
154:2x 7x 11
686:2x 7x 7x 7
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 7x 7 = 196
Therefore, the value for common factors is 196.
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 = 66603048512/(2x196)
LCM = 66603048512/392
LCM = 169905736
Thus, we can understand that the LCM of 866,728,154,686 is 169905736.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 866, 728, 154, 686
1. What is the LCM of 866, 728, 154, 686?
Answer: LCM of 866, 728, 154, 686 is 169905736.
2. How to calculate the LCM of 866, 728, 154, 686?
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 866, 728, 154, 686.
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}.