LCM of 781, 800, 731, 425
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 781, 800, 731, 425 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 781, 800, 731, 425. So, keep reading to learn more.
Given numbers are 781,800,731,425
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 781,800,731,425 is 456728800.
Find LCM of 781,800,731,425 with Prime Factorization
| 5 | 781, 800, 731, 425 |
| 5 | 781, 160, 731, 85 |
| 17 | 781, 32, 731, 17 |
| 781, 32, 43, 1 |
Multiply the prime numbers at the bottom and the left side.
5 x 5 x 17 x 781 x 32 x 43 x 1 = 456728800
Therefore, the lowest common multiple of 781,800,731,425 is 456728800.
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.
781 x 800 x 731 x 425 = 194109740000
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.
781 : 1, 11, 71, 781
800 : 1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800
731 : 1, 17, 43, 731
425 : 1, 5, 17, 25, 85, 425
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 781,800,731,425, is 1.
Now, the common factors can be found like this.
781:11x 71
800:2x 2x 2x 2x 2x 5x 5
731:17x 43
425:5x 5x 17
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
5x 5x 17 = 425
Therefore, the value for common factors is 425.
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 = 194109740000/(1x425)
LCM = 194109740000/425
LCM = 456728800
Thus, we can understand that the LCM of 781,800,731,425 is 456728800.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 781, 800, 731, 425
1. What is the LCM of 781, 800, 731, 425?
Answer: LCM of 781, 800, 731, 425 is 456728800.
2. How to calculate the LCM of 781, 800, 731, 425?
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 781, 800, 731, 425.
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}.