LCM of 721, 789, 618, 861, 179
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 721, 789, 618, 861, 179 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 721, 789, 618, 861, 179. So, keep reading to learn more.
Given numbers are 721,789,618,861,179
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 721,789,618,861,179 is 8349859182.
Find LCM of 721,789,618,861,179 with Prime Factorization
| 3 | 721, 789, 618, 861, 179 |
| 7 | 721, 263, 206, 287, 179 |
| 103 | 103, 263, 206, 41, 179 |
| 1, 263, 2, 41, 179 |
Multiply the prime numbers at the bottom and the left side.
3 x 7 x 103 x 1 x 263 x 2 x 41 x 179 = 8349859182
Therefore, the lowest common multiple of 721,789,618,861,179 is 8349859182.
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.
721 x 789 x 618 x 861 x 179 = 54182236231998
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.
721 : 1, 7, 103, 721
789 : 1, 3, 263, 789
618 : 1, 2, 3, 6, 103, 206, 309, 618
861 : 1, 3, 7, 21, 41, 123, 287, 861
179 : 1, 179
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 721,789,618,861,179, is 1.
Now, the common factors can be found like this.
721:7x 103
789:3x 263
618:2x 3x 103
861:3x 7x 41
179:179
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 7x 103 = 6489
Therefore, the value for common factors is 6489.
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 = 54182236231998/(1x6489)
LCM = 54182236231998/6489
LCM = 8349859182
Thus, we can understand that the LCM of 721,789,618,861,179 is 8349859182.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 721, 789, 618, 861, 179
1. What is the LCM of 721, 789, 618, 861, 179?
Answer: LCM of 721, 789, 618, 861, 179 is 8349859182.
2. How to calculate the LCM of 721, 789, 618, 861, 179?
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 721, 789, 618, 861, 179.
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}.