LCM of 285, 561, 399, 936
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 285, 561, 399, 936 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 285, 561, 399, 936. So, keep reading to learn more.
Given numbers are 285,561,399,936
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 285,561,399,936 is 116396280.
Find LCM of 285,561,399,936 with Prime Factorization
| 3 | 285, 561, 399, 936 |
| 19 | 95, 187, 133, 312 |
| 5, 187, 7, 312 |
Multiply the prime numbers at the bottom and the left side.
3 x 19 x 5 x 187 x 7 x 312 = 116396280
Therefore, the lowest common multiple of 285,561,399,936 is 116396280.
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.
285 x 561 x 399 x 936 = 59711291640
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.
285 : 1, 3, 5, 15, 19, 57, 95, 285
561 : 1, 3, 11, 17, 33, 51, 187, 561
399 : 1, 3, 7, 19, 21, 57, 133, 399
936 : 1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936
3 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 285,561,399,936, is 3.
Now, the common factors can be found like this.
285:3x 5x 19
561:3x 11x 17
399:3x 7x 19
936:2x 2x 2x 3x 3x 13
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 3x 19 = 171
Therefore, the value for common factors is 171.
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 = 59711291640/(3x171)
LCM = 59711291640/513
LCM = 116396280
Thus, we can understand that the LCM of 285,561,399,936 is 116396280.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 285, 561, 399, 936
1. What is the LCM of 285, 561, 399, 936?
Answer: LCM of 285, 561, 399, 936 is 116396280.
2. How to calculate the LCM of 285, 561, 399, 936?
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 285, 561, 399, 936.
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}.