LCM of 585, 316, 420, 990
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 585, 316, 420, 990 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 585, 316, 420, 990. So, keep reading to learn more.
Given numbers are 585,316,420,990
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 585,316,420,990 is 14234220.
Find LCM of 585,316,420,990 with Prime Factorization
| 2 | 585, 316, 420, 990 |
| 2 | 585, 158, 210, 495 |
| 3 | 585, 79, 105, 495 |
| 3 | 195, 79, 35, 165 |
| 5 | 65, 79, 35, 55 |
| 13, 79, 7, 11 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 3 x 5 x 13 x 79 x 7 x 11 = 14234220
Therefore, the lowest common multiple of 585,316,420,990 is 14234220.
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.
585 x 316 x 420 x 990 = 76864788000
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.
585 : 1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585
316 : 1, 2, 4, 79, 158, 316
420 : 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420
990 : 1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 585,316,420,990, is 1.
Now, the common factors can be found like this.
585:3x 3x 5x 13
316:2x 2x 79
420:2x 2x 3x 5x 7
990:2x 3x 3x 5x 11
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 3x 3x 3x 5x 5 = 5400
Therefore, the value for common factors is 5400.
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 = 76864788000/(1x5400)
LCM = 76864788000/5400
LCM = 14234220
Thus, we can understand that the LCM of 585,316,420,990 is 14234220.
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FAQs on LCM of 585, 316, 420, 990
1. What is the LCM of 585, 316, 420, 990?
Answer: LCM of 585, 316, 420, 990 is 14234220.
2. How to calculate the LCM of 585, 316, 420, 990?
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 585, 316, 420, 990.
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}.