LCM of 128, 831, 988, 936, 774
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 128, 831, 988, 936, 774 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, 831, 988, 936, 774. So, keep reading to learn more.
Given numbers are 128,831,988,936,774
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 128,831,988,936,774 is 3389203584.
Find LCM of 128,831,988,936,774 with Prime Factorization
| 2 | 128, 831, 988, 936, 774 |
| 2 | 64, 831, 494, 468, 387 |
| 2 | 32, 831, 247, 234, 387 |
| 3 | 16, 831, 247, 117, 387 |
| 3 | 16, 277, 247, 39, 129 |
| 13 | 16, 277, 247, 13, 43 |
| 16, 277, 19, 1, 43 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 3 x 3 x 13 x 16 x 277 x 19 x 1 x 43 = 3389203584
Therefore, the lowest common multiple of 128,831,988,936,774 is 3389203584.
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 831 x 988 x 936 x 774 = 76135069310976
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
831 : 1, 3, 277, 831
988 : 1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988
936 : 1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936
774 : 1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 128,831,988,936,774, is 1.
Now, the common factors can be found like this.
128:2x 2x 2x 2x 2x 2x 2
831:3x 277
988:2x 2x 13x 19
936:2x 2x 2x 3x 3x 13
774:2x 3x 3x 43
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 3x 3x 3x 13 = 22464
Therefore, the value for common factors is 22464.
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 = 76135069310976/(1x22464)
LCM = 76135069310976/22464
LCM = 3389203584
Thus, we can understand that the LCM of 128,831,988,936,774 is 3389203584.
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FAQs on LCM of 128, 831, 988, 936, 774
1. What is the LCM of 128, 831, 988, 936, 774?
Answer: LCM of 128, 831, 988, 936, 774 is 3389203584.
2. How to calculate the LCM of 128, 831, 988, 936, 774?
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, 831, 988, 936, 774.
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}.