LCM of 289, 84, 245, 685
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 289, 84, 245, 685 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 289, 84, 245, 685. So, keep reading to learn more.
Given numbers are 289,84,245,685
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 289,84,245,685 is 116403420.
Find LCM of 289,84,245,685 with Prime Factorization
| 5 | 289, 84, 245, 685 |
| 7 | 289, 84, 49, 137 |
| 289, 12, 7, 137 |
Multiply the prime numbers at the bottom and the left side.
5 x 7 x 289 x 12 x 7 x 137 = 116403420
Therefore, the lowest common multiple of 289,84,245,685 is 116403420.
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.
289 x 84 x 245 x 685 = 4074119700
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.
289 : 1, 17, 289
84 : 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
245 : 1, 5, 7, 35, 49, 245
685 : 1, 5, 137, 685
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 289,84,245,685, is 1.
Now, the common factors can be found like this.
289:17x 17
84:2x 2x 3x 7
245:5x 7x 7
685:5x 137
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
5x 7 = 35
Therefore, the value for common factors is 35.
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 = 4074119700/(1x35)
LCM = 4074119700/35
LCM = 116403420
Thus, we can understand that the LCM of 289,84,245,685 is 116403420.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 289, 84, 245, 685
1. What is the LCM of 289, 84, 245, 685?
Answer: LCM of 289, 84, 245, 685 is 116403420.
2. How to calculate the LCM of 289, 84, 245, 685?
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 289, 84, 245, 685.
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}.