LCM of 581, 390, 939, 715, 805
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 581, 390, 939, 715, 805 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 581, 390, 939, 715, 805. So, keep reading to learn more.
Given numbers are 581,390,939,715,805
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 581,390,939,715,805 is 17943435510.
Find LCM of 581,390,939,715,805 with Prime Factorization
| 3 | 581, 390, 939, 715, 805 |
| 5 | 581, 130, 313, 715, 805 |
| 7 | 581, 26, 313, 143, 161 |
| 13 | 83, 26, 313, 143, 23 |
| 83, 2, 313, 11, 23 |
Multiply the prime numbers at the bottom and the left side.
3 x 5 x 7 x 13 x 83 x 2 x 313 x 11 x 23 = 17943435510
Therefore, the lowest common multiple of 581,390,939,715,805 is 17943435510.
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.
581 x 390 x 939 x 715 x 805 = 122463947355750
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.
581 : 1, 7, 83, 581
390 : 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390
939 : 1, 3, 313, 939
715 : 1, 5, 11, 13, 55, 65, 143, 715
805 : 1, 5, 7, 23, 35, 115, 161, 805
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 581,390,939,715,805, is 1.
Now, the common factors can be found like this.
581:7x 83
390:2x 3x 5x 13
939:3x 313
715:5x 11x 13
805:5x 7x 23
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 5x 7x 13 = 6825
Therefore, the value for common factors is 6825.
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 = 122463947355750/(1x6825)
LCM = 122463947355750/6825
LCM = 17943435510
Thus, we can understand that the LCM of 581,390,939,715,805 is 17943435510.
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FAQs on LCM of 581, 390, 939, 715, 805
1. What is the LCM of 581, 390, 939, 715, 805?
Answer: LCM of 581, 390, 939, 715, 805 is 17943435510.
2. How to calculate the LCM of 581, 390, 939, 715, 805?
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 581, 390, 939, 715, 805.
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}.