LCM of 684, 531, 316, 981
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 684, 531, 316, 981 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 684, 531, 316, 981. So, keep reading to learn more.
Given numbers are 684,531,316,981
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 684,531,316,981 is 347505516.
Find LCM of 684,531,316,981 with Prime Factorization
| 2 | 684, 531, 316, 981 |
| 2 | 342, 531, 158, 981 |
| 3 | 171, 531, 79, 981 |
| 3 | 57, 177, 79, 327 |
| 19, 59, 79, 109 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 3 x 19 x 59 x 79 x 109 = 347505516
Therefore, the lowest common multiple of 684,531,316,981 is 347505516.
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.
684 x 531 x 316 x 981 = 112591787184
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.
684 : 1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 342, 684
531 : 1, 3, 9, 59, 177, 531
316 : 1, 2, 4, 79, 158, 316
981 : 1, 3, 9, 109, 327, 981
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 684,531,316,981, is 1.
Now, the common factors can be found like this.
684:2x 2x 3x 3x 19
531:3x 3x 59
316:2x 2x 79
981:3x 3x 109
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 3x 3x 3 = 324
Therefore, the value for common factors is 324.
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 = 112591787184/(1x324)
LCM = 112591787184/324
LCM = 347505516
Thus, we can understand that the LCM of 684,531,316,981 is 347505516.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 684, 531, 316, 981
1. What is the LCM of 684, 531, 316, 981?
Answer: LCM of 684, 531, 316, 981 is 347505516.
2. How to calculate the LCM of 684, 531, 316, 981?
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 684, 531, 316, 981.
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}.