LCM of 281, 432, 642, 281
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 281, 432, 642, 281 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 281, 432, 642, 281. So, keep reading to learn more.
Given numbers are 281,432,642,281
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 281,432,642,281 is 12988944.
Find LCM of 281,432,642,281 with Prime Factorization
| 2 | 281, 432, 642, 281 |
| 3 | 281, 216, 321, 281 |
| 281 | 281, 72, 107, 281 |
| 1, 72, 107, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 281 x 1 x 72 x 107 x 1 = 12988944
Therefore, the lowest common multiple of 281,432,642,281 is 12988944.
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.
281 x 432 x 642 x 281 = 21899359584
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.
281 : 1, 281
432 : 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 144, 216, 432
642 : 1, 2, 3, 6, 107, 214, 321, 642
281 : 1, 281
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 281,432,642,281, is 1.
Now, the common factors can be found like this.
281:281
432:2x 2x 2x 2x 3x 3x 3
642:2x 3x 107
281:281
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 281 = 1686
Therefore, the value for common factors is 1686.
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 = 21899359584/(1x1686)
LCM = 21899359584/1686
LCM = 12988944
Thus, we can understand that the LCM of 281,432,642,281 is 12988944.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 281, 432, 642, 281
1. What is the LCM of 281, 432, 642, 281?
Answer: LCM of 281, 432, 642, 281 is 12988944.
2. How to calculate the LCM of 281, 432, 642, 281?
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 281, 432, 642, 281.
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}.