LCM of 287, 355, 781, 121
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 287, 355, 781, 121 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 287, 355, 781, 121. So, keep reading to learn more.
Given numbers are 287,355,781,121
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 287,355,781,121 is 12328085.
Find LCM of 287,355,781,121 with Prime Factorization
| 11 | 287, 355, 781, 121 |
| 71 | 287, 355, 71, 11 |
| 287, 5, 1, 11 |
Multiply the prime numbers at the bottom and the left side.
11 x 71 x 287 x 5 x 1 x 11 = 12328085
Therefore, the lowest common multiple of 287,355,781,121 is 12328085.
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.
287 x 355 x 781 x 121 = 9628234385
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.
287 : 1, 7, 41, 287
355 : 1, 5, 71, 355
781 : 1, 11, 71, 781
121 : 1, 11, 121
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 287,355,781,121, is 1.
Now, the common factors can be found like this.
287:7x 41
355:5x 71
781:11x 71
121:11x 11
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
11x 71 = 781
Therefore, the value for common factors is 781.
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 = 9628234385/(1x781)
LCM = 9628234385/781
LCM = 12328085
Thus, we can understand that the LCM of 287,355,781,121 is 12328085.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 287, 355, 781, 121
1. What is the LCM of 287, 355, 781, 121?
Answer: LCM of 287, 355, 781, 121 is 12328085.
2. How to calculate the LCM of 287, 355, 781, 121?
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 287, 355, 781, 121.
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}.