LCM of 121, 858, 615, 287
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 121, 858, 615, 287 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 121, 858, 615, 287. So, keep reading to learn more.
Given numbers are 121,858,615,287
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 121,858,615,287 is 13543530.
Find LCM of 121,858,615,287 with Prime Factorization
| 3 | 121, 858, 615, 287 |
| 11 | 121, 286, 205, 287 |
| 41 | 11, 26, 205, 287 |
| 11, 26, 5, 7 |
Multiply the prime numbers at the bottom and the left side.
3 x 11 x 41 x 11 x 26 x 5 x 7 = 13543530
Therefore, the lowest common multiple of 121,858,615,287 is 13543530.
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.
121 x 858 x 615 x 287 = 18324396090
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.
121 : 1, 11, 121
858 : 1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 143, 286, 429, 858
615 : 1, 3, 5, 15, 41, 123, 205, 615
287 : 1, 7, 41, 287
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 121,858,615,287, is 1.
Now, the common factors can be found like this.
121:11x 11
858:2x 3x 11x 13
615:3x 5x 41
287:7x 41
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 11x 41 = 1353
Therefore, the value for common factors is 1353.
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 = 18324396090/(1x1353)
LCM = 18324396090/1353
LCM = 13543530
Thus, we can understand that the LCM of 121,858,615,287 is 13543530.
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FAQs on LCM of 121, 858, 615, 287
1. What is the LCM of 121, 858, 615, 287?
Answer: LCM of 121, 858, 615, 287 is 13543530.
2. How to calculate the LCM of 121, 858, 615, 287?
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 121, 858, 615, 287.
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}.