LCM of 689, 904, 828, 207
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 689, 904, 828, 207 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, 904, 828, 207. So, keep reading to learn more.
Given numbers are 689,904,828,207
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 689,904,828,207 is 128931192.
Find LCM of 689,904,828,207 with Prime Factorization
| 2 | 689, 904, 828, 207 |
| 2 | 689, 452, 414, 207 |
| 3 | 689, 226, 207, 207 |
| 3 | 689, 226, 69, 69 |
| 23 | 689, 226, 23, 23 |
| 689, 226, 1, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 3 x 23 x 689 x 226 x 1 x 1 = 128931192
Therefore, the lowest common multiple of 689,904,828,207 is 128931192.
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 904 x 828 x 207 = 106755026976
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
904 : 1, 2, 4, 8, 113, 226, 452, 904
828 : 1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 207, 276, 414, 828
207 : 1, 3, 9, 23, 69, 207
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 689,904,828,207, is 1.
Now, the common factors can be found like this.
689:13x 53
904:2x 2x 2x 113
828:2x 2x 3x 3x 23
207:3x 3x 23
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 3x 3x 23 = 828
Therefore, the value for common factors is 828.
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 = 106755026976/(1x828)
LCM = 106755026976/828
LCM = 128931192
Thus, we can understand that the LCM of 689,904,828,207 is 128931192.
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FAQs on LCM of 689, 904, 828, 207
1. What is the LCM of 689, 904, 828, 207?
Answer: LCM of 689, 904, 828, 207 is 128931192.
2. How to calculate the LCM of 689, 904, 828, 207?
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, 904, 828, 207.
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}.