LCM of 422, 686, 442, 988
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 422, 686, 442, 988 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 422, 686, 442, 988. So, keep reading to learn more.
Given numbers are 422,686,442,988
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 422,686,442,988 is 1215576908.
Find LCM of 422,686,442,988 with Prime Factorization
| 2 | 422, 686, 442, 988 |
| 13 | 211, 343, 221, 494 |
| 211, 343, 17, 38 |
Multiply the prime numbers at the bottom and the left side.
2 x 13 x 211 x 343 x 17 x 38 = 1215576908
Therefore, the lowest common multiple of 422,686,442,988 is 1215576908.
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.
422 x 686 x 442 x 988 = 126419998432
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.
422 : 1, 2, 211, 422
686 : 1, 2, 7, 14, 49, 98, 343, 686
442 : 1, 2, 13, 17, 26, 34, 221, 442
988 : 1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988
2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 422,686,442,988, is 2.
Now, the common factors can be found like this.
422:2x 211
686:2x 7x 7x 7
442:2x 13x 17
988:2x 2x 13x 19
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 13 = 52
Therefore, the value for common factors is 52.
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 = 126419998432/(2x52)
LCM = 126419998432/104
LCM = 1215576908
Thus, we can understand that the LCM of 422,686,442,988 is 1215576908.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 422, 686, 442, 988
1. What is the LCM of 422, 686, 442, 988?
Answer: LCM of 422, 686, 442, 988 is 1215576908.
2. How to calculate the LCM of 422, 686, 442, 988?
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 422, 686, 442, 988.
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}.