LCM of 455, 143, 209, 987
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 455, 143, 209, 987 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 455, 143, 209, 987. So, keep reading to learn more.
Given numbers are 455,143,209,987
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 455,143,209,987 is 13408395.
Find LCM of 455,143,209,987 with Prime Factorization
| 7 | 455, 143, 209, 987 |
| 11 | 65, 143, 209, 141 |
| 13 | 65, 13, 19, 141 |
| 5, 1, 19, 141 |
Multiply the prime numbers at the bottom and the left side.
7 x 11 x 13 x 5 x 1 x 19 x 141 = 13408395
Therefore, the lowest common multiple of 455,143,209,987 is 13408395.
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.
455 x 143 x 209 x 987 = 13421803395
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.
455 : 1, 5, 7, 13, 35, 65, 91, 455
143 : 1, 11, 13, 143
209 : 1, 11, 19, 209
987 : 1, 3, 7, 21, 47, 141, 329, 987
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 455,143,209,987, is 1.
Now, the common factors can be found like this.
455:5x 7x 13
143:11x 13
209:11x 19
987:3x 7x 47
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
7x 11x 13 = 1001
Therefore, the value for common factors is 1001.
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 = 13421803395/(1x1001)
LCM = 13421803395/1001
LCM = 13408395
Thus, we can understand that the LCM of 455,143,209,987 is 13408395.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 455, 143, 209, 987
1. What is the LCM of 455, 143, 209, 987?
Answer: LCM of 455, 143, 209, 987 is 13408395.
2. How to calculate the LCM of 455, 143, 209, 987?
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 455, 143, 209, 987.
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}.