LCM of 689, 778, 585, 986, 105
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 689, 778, 585, 986, 105 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 689, 778, 585, 986, 105. So, keep reading to learn more.
Given numbers are 689,778,585,986,105
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 689,778,585,986,105 is 83244642390.
Find LCM of 689,778,585,986,105 with Prime Factorization
| 2 | 689, 778, 585, 986, 105 |
| 3 | 689, 389, 585, 493, 105 |
| 5 | 689, 389, 195, 493, 35 |
| 13 | 689, 389, 39, 493, 7 |
| 53, 389, 3, 493, 7 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 5 x 13 x 53 x 389 x 3 x 493 x 7 = 83244642390
Therefore, the lowest common multiple of 689,778,585,986,105 is 83244642390.
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.
689 x 778 x 585 x 986 x 105 = 32465410532100
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.
689 : 1, 13, 53, 689
778 : 1, 2, 389, 778
585 : 1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585
986 : 1, 2, 17, 29, 34, 58, 493, 986
105 : 1, 3, 5, 7, 15, 21, 35, 105
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 689,778,585,986,105, is 1.
Now, the common factors can be found like this.
689:13x 53
778:2x 389
585:3x 3x 5x 13
986:2x 17x 29
105:3x 5x 7
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3x 5x 13 = 390
Therefore, the value for common factors is 390.
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 = 32465410532100/(1x390)
LCM = 32465410532100/390
LCM = 83244642390
Thus, we can understand that the LCM of 689,778,585,986,105 is 83244642390.
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FAQs on LCM of 689, 778, 585, 986, 105
1. What is the LCM of 689, 778, 585, 986, 105?
Answer: LCM of 689, 778, 585, 986, 105 is 83244642390.
2. How to calculate the LCM of 689, 778, 585, 986, 105?
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 689, 778, 585, 986, 105.
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}.