LCM of 105, 119, 490, 289
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 105, 119, 490, 289 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 105, 119, 490, 289. So, keep reading to learn more.
Given numbers are 105,119,490,289
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 105,119,490,289 is 424830.
Find LCM of 105,119,490,289 with Prime Factorization
| 5 | 105, 119, 490, 289 |
| 7 | 21, 119, 98, 289 |
| 17 | 3, 17, 14, 289 |
| 3, 1, 14, 17 |
Multiply the prime numbers at the bottom and the left side.
5 x 7 x 17 x 3 x 1 x 14 x 17 = 424830
Therefore, the lowest common multiple of 105,119,490,289 is 424830.
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.
105 x 119 x 490 x 289 = 1769416950
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.
105 : 1, 3, 5, 7, 15, 21, 35, 105
119 : 1, 7, 17, 119
490 : 1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490
289 : 1, 17, 289
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 105,119,490,289, is 1.
Now, the common factors can be found like this.
105:3x 5x 7
119:7x 17
490:2x 5x 7x 7
289:17x 17
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
5x 7x 7x 17 = 4165
Therefore, the value for common factors is 4165.
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 = 1769416950/(1x4165)
LCM = 1769416950/4165
LCM = 424830
Thus, we can understand that the LCM of 105,119,490,289 is 424830.
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FAQs on LCM of 105, 119, 490, 289
1. What is the LCM of 105, 119, 490, 289?
Answer: LCM of 105, 119, 490, 289 is 424830.
2. How to calculate the LCM of 105, 119, 490, 289?
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 105, 119, 490, 289.
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}.