LCM of 680, 786, 715, 205, 986
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 680, 786, 715, 205, 986 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 680, 786, 715, 205, 986. So, keep reading to learn more.
Given numbers are 680,786,715,205,986
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 680,786,715,205,986 is 45438015480.
Find LCM of 680,786,715,205,986 with Prime Factorization
| 2 | 680, 786, 715, 205, 986 |
| 5 | 340, 393, 715, 205, 493 |
| 17 | 68, 393, 143, 41, 493 |
| 4, 393, 143, 41, 29 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 17 x 4 x 393 x 143 x 41 x 29 = 45438015480
Therefore, the lowest common multiple of 680,786,715,205,986 is 45438015480.
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.
680 x 786 x 715 x 205 x 986 = 77244626316000
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.
680 : 1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680
786 : 1, 2, 3, 6, 131, 262, 393, 786
715 : 1, 5, 11, 13, 55, 65, 143, 715
205 : 1, 5, 41, 205
986 : 1, 2, 17, 29, 34, 58, 493, 986
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 680,786,715,205,986, is 1.
Now, the common factors can be found like this.
680:2x 2x 2x 5x 17
786:2x 3x 131
715:5x 11x 13
205:5x 41
986:2x 17x 29
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 2x 5x 5x 17 = 1700
Therefore, the value for common factors is 1700.
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 = 77244626316000/(1x1700)
LCM = 77244626316000/1700
LCM = 45438015480
Thus, we can understand that the LCM of 680,786,715,205,986 is 45438015480.
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FAQs on LCM of 680, 786, 715, 205, 986
1. What is the LCM of 680, 786, 715, 205, 986?
Answer: LCM of 680, 786, 715, 205, 986 is 45438015480.
2. How to calculate the LCM of 680, 786, 715, 205, 986?
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 680, 786, 715, 205, 986.
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}.