LCM of 931, 196, 685, 728
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 931, 196, 685, 728 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 931, 196, 685, 728. So, keep reading to learn more.
Given numbers are 931,196,685,728
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 931,196,685,728 is 66324440.
Find LCM of 931,196,685,728 with Prime Factorization
| 2 | 931, 196, 685, 728 |
| 2 | 931, 98, 685, 364 |
| 7 | 931, 49, 685, 182 |
| 7 | 133, 7, 685, 26 |
| 19, 1, 685, 26 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 7 x 7 x 19 x 1 x 685 x 26 = 66324440
Therefore, the lowest common multiple of 931,196,685,728 is 66324440.
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.
931 x 196 x 685 x 728 = 90997131680
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.
931 : 1, 7, 19, 49, 133, 931
196 : 1, 2, 4, 7, 14, 28, 49, 98, 196
685 : 1, 5, 137, 685
728 : 1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 931,196,685,728, is 1.
Now, the common factors can be found like this.
931:7x 7x 19
196:2x 2x 7x 7
685:5x 137
728:2x 2x 2x 7x 13
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 7x 7x 7 = 1372
Therefore, the value for common factors is 1372.
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 = 90997131680/(1x1372)
LCM = 90997131680/1372
LCM = 66324440
Thus, we can understand that the LCM of 931,196,685,728 is 66324440.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 931, 196, 685, 728
1. What is the LCM of 931, 196, 685, 728?
Answer: LCM of 931, 196, 685, 728 is 66324440.
2. How to calculate the LCM of 931, 196, 685, 728?
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 931, 196, 685, 728.
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}.