LCM of 284, 285, 785, 490
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 284, 285, 785, 490 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 284, 285, 785, 490. So, keep reading to learn more.
Given numbers are 284,285,785,490
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 284,285,785,490 is 622671420.
Find LCM of 284,285,785,490 with Prime Factorization
| 2 | 284, 285, 785, 490 |
| 5 | 142, 285, 785, 245 |
| 142, 57, 157, 49 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 142 x 57 x 157 x 49 = 622671420
Therefore, the lowest common multiple of 284,285,785,490 is 622671420.
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.
284 x 285 x 785 x 490 = 31133571000
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.
284 : 1, 2, 4, 71, 142, 284
285 : 1, 3, 5, 15, 19, 57, 95, 285
785 : 1, 5, 157, 785
490 : 1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 284,285,785,490, is 1.
Now, the common factors can be found like this.
284:2x 2x 71
285:3x 5x 19
785:5x 157
490:2x 5x 7x 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 5x 5 = 50
Therefore, the value for common factors is 50.
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 = 31133571000/(1x50)
LCM = 31133571000/50
LCM = 622671420
Thus, we can understand that the LCM of 284,285,785,490 is 622671420.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 284, 285, 785, 490
1. What is the LCM of 284, 285, 785, 490?
Answer: LCM of 284, 285, 785, 490 is 622671420.
2. How to calculate the LCM of 284, 285, 785, 490?
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 284, 285, 785, 490.
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}.