LCM of 869, 240, 416, 128
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 869, 240, 416, 128 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 869, 240, 416, 128. So, keep reading to learn more.
Given numbers are 869,240,416,128
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 869,240,416,128 is 21690240.
Find LCM of 869,240,416,128 with Prime Factorization
| 2 | 869, 240, 416, 128 |
| 2 | 869, 120, 208, 64 |
| 2 | 869, 60, 104, 32 |
| 2 | 869, 30, 52, 16 |
| 2 | 869, 15, 26, 8 |
| 869, 15, 13, 4 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 2 x 2 x 869 x 15 x 13 x 4 = 21690240
Therefore, the lowest common multiple of 869,240,416,128 is 21690240.
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.
869 x 240 x 416 x 128 = 11105402880
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.
869 : 1, 11, 79, 869
240 : 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240
416 : 1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416
128 : 1, 2, 4, 8, 16, 32, 64, 128
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 869,240,416,128, is 1.
Now, the common factors can be found like this.
869:11x 79
240:2x 2x 2x 2x 3x 5
416:2x 2x 2x 2x 2x 13
128:2x 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 2x 2x 2x 2 = 512
Therefore, the value for common factors is 512.
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 = 11105402880/(1x512)
LCM = 11105402880/512
LCM = 21690240
Thus, we can understand that the LCM of 869,240,416,128 is 21690240.
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FAQs on LCM of 869, 240, 416, 128
1. What is the LCM of 869, 240, 416, 128?
Answer: LCM of 869, 240, 416, 128 is 21690240.
2. How to calculate the LCM of 869, 240, 416, 128?
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 869, 240, 416, 128.
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}.