LCM of 385, 221, 289, 447
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 385, 221, 289, 447 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 385, 221, 289, 447. So, keep reading to learn more.
Given numbers are 385,221,289,447
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 385,221,289,447 is 646560915.
Find LCM of 385,221,289,447 with Prime Factorization
| 17 | 385, 221, 289, 447 |
| 385, 13, 17, 447 |
Multiply the prime numbers at the bottom and the left side.
17 x 385 x 13 x 17 x 447 = 646560915
Therefore, the lowest common multiple of 385,221,289,447 is 646560915.
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.
385 x 221 x 289 x 447 = 10991535555
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.
385 : 1, 5, 7, 11, 35, 55, 77, 385
221 : 1, 13, 17, 221
289 : 1, 17, 289
447 : 1, 3, 149, 447
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 385,221,289,447, is 1.
Now, the common factors can be found like this.
385:5x 7x 11
221:13x 17
289:17x 17
447:3x 149
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
17 = 17
Therefore, the value for common factors is 17.
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 = 10991535555/(1x17)
LCM = 10991535555/17
LCM = 646560915
Thus, we can understand that the LCM of 385,221,289,447 is 646560915.
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FAQs on LCM of 385, 221, 289, 447
1. What is the LCM of 385, 221, 289, 447?
Answer: LCM of 385, 221, 289, 447 is 646560915.
2. How to calculate the LCM of 385, 221, 289, 447?
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 385, 221, 289, 447.
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}.