LCM of 561, 624, 442
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 561, 624, 442 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 561, 624, 442. So, keep reading to learn more.
Given numbers are 561,624,442
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 561,624,442 is 116688.
Find LCM of 561,624,442 with Prime Factorization
| 2 | 561, 624, 442 |
| 3 | 561, 312, 221 |
| 13 | 187, 104, 221 |
| 17 | 187, 8, 17 |
| 11, 8, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 13 x 17 x 11 x 8 x 1 = 116688
Therefore, the lowest common multiple of 561,624,442 is 116688.
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.
561 x 624 x 442 = 154728288
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.
561 : 1, 3, 11, 17, 33, 51, 187, 561
624 : 1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 624
442 : 1, 2, 13, 17, 26, 34, 221, 442
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 561,624,442, is 1.
Now, the common factors can be found like this.
561:3x 11x 17
624:2x 2x 2x 2x 3x 13
442:2x 13x 17
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3x 13x 17 = 1326
Therefore, the value for common factors is 1326.
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 = 154728288/(1x1326)
LCM = 154728288/1326
LCM = 116688
Thus, we can understand that the LCM of 561,624,442 is 116688.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 561, 624, 442
1. What is the LCM of 561, 624, 442?
Answer: LCM of 561, 624, 442 is 116688.
2. How to calculate the LCM of 561, 624, 442?
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 561, 624, 442.
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}.