LCM of 689, 403, 992, 778
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 689, 403, 992, 778 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, 403, 992, 778. So, keep reading to learn more.
Given numbers are 689,403,992,778
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 689,403,992,778 is 265876832.
Find LCM of 689,403,992,778 with Prime Factorization
| 2 | 689, 403, 992, 778 |
| 13 | 689, 403, 496, 389 |
| 31 | 53, 31, 496, 389 |
| 53, 1, 16, 389 |
Multiply the prime numbers at the bottom and the left side.
2 x 13 x 31 x 53 x 1 x 16 x 389 = 265876832
Therefore, the lowest common multiple of 689,403,992,778 is 265876832.
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 403 x 992 x 778 = 214296726592
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
403 : 1, 13, 31, 403
992 : 1, 2, 4, 8, 16, 31, 32, 62, 124, 248, 496, 992
778 : 1, 2, 389, 778
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 689,403,992,778, is 1.
Now, the common factors can be found like this.
689:13x 53
403:13x 31
992:2x 2x 2x 2x 2x 31
778:2x 389
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 13x 31 = 806
Therefore, the value for common factors is 806.
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 = 214296726592/(1x806)
LCM = 214296726592/806
LCM = 265876832
Thus, we can understand that the LCM of 689,403,992,778 is 265876832.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 689, 403, 992, 778
1. What is the LCM of 689, 403, 992, 778?
Answer: LCM of 689, 403, 992, 778 is 265876832.
2. How to calculate the LCM of 689, 403, 992, 778?
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, 403, 992, 778.
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}.