LCM of 688, 782, 161, 256
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 688, 782, 161, 256 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 688, 782, 161, 256. So, keep reading to learn more.
Given numbers are 688,782,161,256
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 688,782,161,256 is 30128896.
Find LCM of 688,782,161,256 with Prime Factorization
| 2 | 688, 782, 161, 256 |
| 2 | 344, 391, 161, 128 |
| 2 | 172, 391, 161, 64 |
| 2 | 86, 391, 161, 32 |
| 23 | 43, 391, 161, 16 |
| 43, 17, 7, 16 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 2 x 23 x 43 x 17 x 7 x 16 = 30128896
Therefore, the lowest common multiple of 688,782,161,256 is 30128896.
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.
688 x 782 x 161 x 256 = 22174867456
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.
688 : 1, 2, 4, 8, 16, 43, 86, 172, 344, 688
782 : 1, 2, 17, 23, 34, 46, 391, 782
161 : 1, 7, 23, 161
256 : 1, 2, 4, 8, 16, 32, 64, 128, 256
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 688,782,161,256, is 1.
Now, the common factors can be found like this.
688:2x 2x 2x 2x 43
782:2x 17x 23
161:7x 23
256:2x 2x 2x 2x 2x 2x 2x 2
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 23 = 736
Therefore, the value for common factors is 736.
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 = 22174867456/(1x736)
LCM = 22174867456/736
LCM = 30128896
Thus, we can understand that the LCM of 688,782,161,256 is 30128896.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 688, 782, 161, 256
1. What is the LCM of 688, 782, 161, 256?
Answer: LCM of 688, 782, 161, 256 is 30128896.
2. How to calculate the LCM of 688, 782, 161, 256?
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 688, 782, 161, 256.
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}.