Find the LCM of 289, 705, 391, 705 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, 705, 391, 705. So, keep reading to learn more.
Given numbers are 289,705,391,705
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 289,705,391,705 is 4686135.
Find LCM of 289,705,391,705 with Prime Factorization
3 | 289, 705, 391, 705 |
5 | 289, 235, 391, 235 |
17 | 289, 47, 391, 47 |
47 | 17, 47, 23, 47 |
17, 1, 23, 1 |
Multiply the prime numbers at the bottom and the left side.
3 x 5 x 17 x 47 x 17 x 1 x 23 x 1 = 4686135
Therefore, the lowest common multiple of 289,705,391,705 is 4686135.
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 705 x 391 x 705 = 56163327975
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
705 : 1, 3, 5, 15, 47, 141, 235, 705
391 : 1, 17, 23, 391
705 : 1, 3, 5, 15, 47, 141, 235, 705
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 289,705,391,705, is 1.
Now, the common factors can be found like this.
289:17x 17
705:3x 5x 47
391:17x 23
705:3x 5x 47
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 5x 17x 47 = 11985
Therefore, the value for common factors is 11985.
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 = 56163327975/(1x11985)
LCM = 56163327975/11985
LCM = 4686135
Thus, we can understand that the LCM of 289,705,391,705 is 4686135.
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 289, 705, 391, 705?
Answer: LCM of 289, 705, 391, 705 is 4686135.
2. How to calculate the LCM of 289, 705, 391, 705?
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, 705, 391, 705.
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}.