LCM of 671, 644, 561, 864
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 671, 644, 561, 864 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 671, 644, 561, 864. So, keep reading to learn more.
Given numbers are 671,644,561,864
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 671,644,561,864 is 1586759328.
Find LCM of 671,644,561,864 with Prime Factorization
| 2 | 671, 644, 561, 864 |
| 2 | 671, 322, 561, 432 |
| 3 | 671, 161, 561, 216 |
| 11 | 671, 161, 187, 72 |
| 61, 161, 17, 72 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 11 x 61 x 161 x 17 x 72 = 1586759328
Therefore, the lowest common multiple of 671,644,561,864 is 1586759328.
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.
671 x 644 x 561 x 864 = 209452231296
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.
671 : 1, 11, 61, 671
644 : 1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644
561 : 1, 3, 11, 17, 33, 51, 187, 561
864 : 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 72, 96, 108, 144, 216, 288, 432, 864
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 671,644,561,864, is 1.
Now, the common factors can be found like this.
671:11x 61
644:2x 2x 7x 23
561:3x 11x 17
864:2x 2x 2x 2x 2x 3x 3x 3
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 11 = 132
Therefore, the value for common factors is 132.
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 = 209452231296/(1x132)
LCM = 209452231296/132
LCM = 1586759328
Thus, we can understand that the LCM of 671,644,561,864 is 1586759328.
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FAQs on LCM of 671, 644, 561, 864
1. What is the LCM of 671, 644, 561, 864?
Answer: LCM of 671, 644, 561, 864 is 1586759328.
2. How to calculate the LCM of 671, 644, 561, 864?
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 671, 644, 561, 864.
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}.