LCM of 871, 117, 438, 988
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 871, 117, 438, 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 871, 117, 438, 988. So, keep reading to learn more.
Given numbers are 871,117,438,988
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 871,117,438,988 is 43490772.
Find LCM of 871,117,438,988 with Prime Factorization
| 2 | 871, 117, 438, 988 |
| 3 | 871, 117, 219, 494 |
| 13 | 871, 39, 73, 494 |
| 67, 3, 73, 38 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 13 x 67 x 3 x 73 x 38 = 43490772
Therefore, the lowest common multiple of 871,117,438,988 is 43490772.
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.
871 x 117 x 438 x 988 = 44099642808
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.
871 : 1, 13, 67, 871
117 : 1, 3, 9, 13, 39, 117
438 : 1, 2, 3, 6, 73, 146, 219, 438
988 : 1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 871,117,438,988, is 1.
Now, the common factors can be found like this.
871:13x 67
117:3x 3x 13
438:2x 3x 73
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 3x 13x 13 = 1014
Therefore, the value for common factors is 1014.
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 = 44099642808/(1x1014)
LCM = 44099642808/1014
LCM = 43490772
Thus, we can understand that the LCM of 871,117,438,988 is 43490772.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 871, 117, 438, 988
1. What is the LCM of 871, 117, 438, 988?
Answer: LCM of 871, 117, 438, 988 is 43490772.
2. How to calculate the LCM of 871, 117, 438, 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 871, 117, 438, 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}.