LCM of 678, 687, 781, 473
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 678, 687, 781, 473 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 678, 687, 781, 473. So, keep reading to learn more.
Given numbers are 678,687,781,473
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 678,687,781,473 is 5214163746.
Find LCM of 678,687,781,473 with Prime Factorization
| 3 | 678, 687, 781, 473 |
| 11 | 226, 229, 781, 473 |
| 226, 229, 71, 43 |
Multiply the prime numbers at the bottom and the left side.
3 x 11 x 226 x 229 x 71 x 43 = 5214163746
Therefore, the lowest common multiple of 678,687,781,473 is 5214163746.
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.
678 x 687 x 781 x 473 = 172067403618
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.
678 : 1, 2, 3, 6, 113, 226, 339, 678
687 : 1, 3, 229, 687
781 : 1, 11, 71, 781
473 : 1, 11, 43, 473
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 678,687,781,473, is 1.
Now, the common factors can be found like this.
678:2x 3x 113
687:3x 229
781:11x 71
473:11x 43
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 11 = 33
Therefore, the value for common factors is 33.
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 = 172067403618/(1x33)
LCM = 172067403618/33
LCM = 5214163746
Thus, we can understand that the LCM of 678,687,781,473 is 5214163746.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 678, 687, 781, 473
1. What is the LCM of 678, 687, 781, 473?
Answer: LCM of 678, 687, 781, 473 is 5214163746.
2. How to calculate the LCM of 678, 687, 781, 473?
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 678, 687, 781, 473.
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}.