LCM of 447, 678, 693, 781
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 447, 678, 693, 781 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 447, 678, 693, 781. So, keep reading to learn more.
Given numbers are 447,678,693,781
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 447,678,693,781 is 1656861822.
Find LCM of 447,678,693,781 with Prime Factorization
| 3 | 447, 678, 693, 781 |
| 11 | 149, 226, 231, 781 |
| 149, 226, 21, 71 |
Multiply the prime numbers at the bottom and the left side.
3 x 11 x 149 x 226 x 21 x 71 = 1656861822
Therefore, the lowest common multiple of 447,678,693,781 is 1656861822.
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.
447 x 678 x 693 x 781 = 164029320378
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.
447 : 1, 3, 149, 447
678 : 1, 2, 3, 6, 113, 226, 339, 678
693 : 1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693
781 : 1, 11, 71, 781
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 447,678,693,781, is 1.
Now, the common factors can be found like this.
447:3x 149
678:2x 3x 113
693:3x 3x 7x 11
781:11x 71
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 11 = 99
Therefore, the value for common factors is 99.
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 = 164029320378/(1x99)
LCM = 164029320378/99
LCM = 1656861822
Thus, we can understand that the LCM of 447,678,693,781 is 1656861822.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 447, 678, 693, 781
1. What is the LCM of 447, 678, 693, 781?
Answer: LCM of 447, 678, 693, 781 is 1656861822.
2. How to calculate the LCM of 447, 678, 693, 781?
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 447, 678, 693, 781.
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}.