LCM of 621, 453, 421, 842
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 621, 453, 421, 842 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 621, 453, 421, 842. So, keep reading to learn more.
Given numbers are 621,453,421,842
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 621,453,421,842 is 78955182.
Find LCM of 621,453,421,842 with Prime Factorization
| 3 | 621, 453, 421, 842 |
| 421 | 207, 151, 421, 842 |
| 207, 151, 1, 2 |
Multiply the prime numbers at the bottom and the left side.
3 x 421 x 207 x 151 x 1 x 2 = 78955182
Therefore, the lowest common multiple of 621,453,421,842 is 78955182.
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.
621 x 453 x 421 x 842 = 99720394866
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.
621 : 1, 3, 9, 23, 27, 69, 207, 621
453 : 1, 3, 151, 453
421 : 1, 421
842 : 1, 2, 421, 842
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 621,453,421,842, is 1.
Now, the common factors can be found like this.
621:3x 3x 3x 23
453:3x 151
421:421
842:2x 421
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 421 = 1263
Therefore, the value for common factors is 1263.
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 = 99720394866/(1x1263)
LCM = 99720394866/1263
LCM = 78955182
Thus, we can understand that the LCM of 621,453,421,842 is 78955182.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 621, 453, 421, 842
1. What is the LCM of 621, 453, 421, 842?
Answer: LCM of 621, 453, 421, 842 is 78955182.
2. How to calculate the LCM of 621, 453, 421, 842?
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 621, 453, 421, 842.
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}.