LCM of 638, 842, 918, 874
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 638, 842, 918, 874 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 638, 842, 918, 874. So, keep reading to learn more.
Given numbers are 638,842,918,874
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 638,842,918,874 is 53876192634.
Find LCM of 638,842,918,874 with Prime Factorization
| 2 | 638, 842, 918, 874 |
| 319, 421, 459, 437 |
Multiply the prime numbers at the bottom and the left side.
2 x 319 x 421 x 459 x 437 = 53876192634
Therefore, the lowest common multiple of 638,842,918,874 is 53876192634.
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.
638 x 842 x 918 x 874 = 431009541072
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.
638 : 1, 2, 11, 22, 29, 58, 319, 638
842 : 1, 2, 421, 842
918 : 1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 102, 153, 306, 459, 918
874 : 1, 2, 19, 23, 38, 46, 437, 874
2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 638,842,918,874, is 2.
Now, the common factors can be found like this.
638:2x 11x 29
842:2x 421
918:2x 3x 3x 3x 17
874:2x 19x 23
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 2 = 4
Therefore, the value for common factors is 4.
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 = 431009541072/(2x4)
LCM = 431009541072/8
LCM = 53876192634
Thus, we can understand that the LCM of 638,842,918,874 is 53876192634.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 638, 842, 918, 874
1. What is the LCM of 638, 842, 918, 874?
Answer: LCM of 638, 842, 918, 874 is 53876192634.
2. How to calculate the LCM of 638, 842, 918, 874?
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 638, 842, 918, 874.
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}.