LCM of 689, 768, 172, 754
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 689, 768, 172, 754 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, 768, 172, 754. So, keep reading to learn more.
Given numbers are 689,768,172,754
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 689,768,172,754 is 659852544.
Find LCM of 689,768,172,754 with Prime Factorization
| 2 | 689, 768, 172, 754 |
| 2 | 689, 384, 86, 377 |
| 13 | 689, 192, 43, 377 |
| 53, 192, 43, 29 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 13 x 53 x 192 x 43 x 29 = 659852544
Therefore, the lowest common multiple of 689,768,172,754 is 659852544.
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 768 x 172 x 754 = 68624664576
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
768 : 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256, 384, 768
172 : 1, 2, 4, 43, 86, 172
754 : 1, 2, 13, 26, 29, 58, 377, 754
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 689,768,172,754, is 1.
Now, the common factors can be found like this.
689:13x 53
768:2x 2x 2x 2x 2x 2x 2x 2x 3
172:2x 2x 43
754:2x 13x 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 2x 13 = 104
Therefore, the value for common factors is 104.
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 = 68624664576/(1x104)
LCM = 68624664576/104
LCM = 659852544
Thus, we can understand that the LCM of 689,768,172,754 is 659852544.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 689, 768, 172, 754
1. What is the LCM of 689, 768, 172, 754?
Answer: LCM of 689, 768, 172, 754 is 659852544.
2. How to calculate the LCM of 689, 768, 172, 754?
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, 768, 172, 754.
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}.