LCM of 381, 989, 759, 781
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 381, 989, 759, 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 381, 989, 759, 781. So, keep reading to learn more.
Given numbers are 381,989,759,781
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 381,989,759,781 is 294287829.
Find LCM of 381,989,759,781 with Prime Factorization
| 3 | 381, 989, 759, 781 |
| 11 | 127, 989, 253, 781 |
| 23 | 127, 989, 23, 71 |
| 127, 43, 1, 71 |
Multiply the prime numbers at the bottom and the left side.
3 x 11 x 23 x 127 x 43 x 1 x 71 = 294287829
Therefore, the lowest common multiple of 381,989,759,781 is 294287829.
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.
381 x 989 x 759 x 781 = 223364462211
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.
381 : 1, 3, 127, 381
989 : 1, 23, 43, 989
759 : 1, 3, 11, 23, 33, 69, 253, 759
781 : 1, 11, 71, 781
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 381,989,759,781, is 1.
Now, the common factors can be found like this.
381:3x 127
989:23x 43
759:3x 11x 23
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 11x 23 = 759
Therefore, the value for common factors is 759.
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 = 223364462211/(1x759)
LCM = 223364462211/759
LCM = 294287829
Thus, we can understand that the LCM of 381,989,759,781 is 294287829.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 381, 989, 759, 781
1. What is the LCM of 381, 989, 759, 781?
Answer: LCM of 381, 989, 759, 781 is 294287829.
2. How to calculate the LCM of 381, 989, 759, 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 381, 989, 759, 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}.