LCM of 705, 939, 687, 491, 645
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 705, 939, 687, 491, 645 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 705, 939, 687, 491, 645. So, keep reading to learn more.
Given numbers are 705,939,687,491,645
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 705,939,687,491,645 is 1066888133205.
Find LCM of 705,939,687,491,645 with Prime Factorization
| 3 | 705, 939, 687, 491, 645 |
| 5 | 235, 313, 229, 491, 215 |
| 47, 313, 229, 491, 43 |
Multiply the prime numbers at the bottom and the left side.
3 x 5 x 47 x 313 x 229 x 491 x 43 = 1066888133205
Therefore, the lowest common multiple of 705,939,687,491,645 is 1066888133205.
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.
705 x 939 x 687 x 491 x 645 = 144029897982675
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.
705 : 1, 3, 5, 15, 47, 141, 235, 705
939 : 1, 3, 313, 939
687 : 1, 3, 229, 687
491 : 1, 491
645 : 1, 3, 5, 15, 43, 129, 215, 645
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 705,939,687,491,645, is 1.
Now, the common factors can be found like this.
705:3x 5x 47
939:3x 313
687:3x 229
491:491
645:3x 5x 43
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 3x 3x 5 = 135
Therefore, the value for common factors is 135.
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 = 144029897982675/(1x135)
LCM = 144029897982675/135
LCM = 1066888133205
Thus, we can understand that the LCM of 705,939,687,491,645 is 1066888133205.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 705, 939, 687, 491, 645
1. What is the LCM of 705, 939, 687, 491, 645?
Answer: LCM of 705, 939, 687, 491, 645 is 1066888133205.
2. How to calculate the LCM of 705, 939, 687, 491, 645?
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 705, 939, 687, 491, 645.
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}.