LCM of 491, 285, 220, 231
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 491, 285, 220, 231 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 491, 285, 220, 231. So, keep reading to learn more.
Given numbers are 491,285,220,231
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 491,285,220,231 is 43099980.
Find LCM of 491,285,220,231 with Prime Factorization
| 3 | 491, 285, 220, 231 |
| 5 | 491, 95, 220, 77 |
| 11 | 491, 19, 44, 77 |
| 491, 19, 4, 7 |
Multiply the prime numbers at the bottom and the left side.
3 x 5 x 11 x 491 x 19 x 4 x 7 = 43099980
Therefore, the lowest common multiple of 491,285,220,231 is 43099980.
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.
491 x 285 x 220 x 231 = 7111496700
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.
491 : 1, 491
285 : 1, 3, 5, 15, 19, 57, 95, 285
220 : 1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220
231 : 1, 3, 7, 11, 21, 33, 77, 231
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 491,285,220,231, is 1.
Now, the common factors can be found like this.
491:491
285:3x 5x 19
220:2x 2x 5x 11
231:3x 7x 11
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 5x 11 = 165
Therefore, the value for common factors is 165.
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 = 7111496700/(1x165)
LCM = 7111496700/165
LCM = 43099980
Thus, we can understand that the LCM of 491,285,220,231 is 43099980.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 491, 285, 220, 231
1. What is the LCM of 491, 285, 220, 231?
Answer: LCM of 491, 285, 220, 231 is 43099980.
2. How to calculate the LCM of 491, 285, 220, 231?
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 491, 285, 220, 231.
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}.