LCM of 721, 991, 846, 643, 738
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 721, 991, 846, 643, 738 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, 991, 846, 643, 738. So, keep reading to learn more.
Given numbers are 721,991,846,643,738
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 721,991,846,643,738 is 15935808855078.
Find LCM of 721,991,846,643,738 with Prime Factorization
| 2 | 721, 991, 846, 643, 738 |
| 3 | 721, 991, 423, 643, 369 |
| 3 | 721, 991, 141, 643, 123 |
| 721, 991, 47, 643, 41 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 3 x 721 x 991 x 47 x 643 x 41 = 15935808855078
Therefore, the lowest common multiple of 721,991,846,643,738 is 15935808855078.
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 991 x 846 x 643 x 738 = 286844559391404
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
991 : 1, 991
846 : 1, 2, 3, 6, 9, 18, 47, 94, 141, 282, 423, 846
643 : 1, 643
738 : 1, 2, 3, 6, 9, 18, 41, 82, 123, 246, 369, 738
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 721,991,846,643,738, is 1.
Now, the common factors can be found like this.
721:7x 103
991:991
846:2x 3x 3x 47
643:643
738:2x 3x 3x 41
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3x 3 = 18
Therefore, the value for common factors is 18.
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 = 286844559391404/(1x18)
LCM = 286844559391404/18
LCM = 15935808855078
Thus, we can understand that the LCM of 721,991,846,643,738 is 15935808855078.
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FAQs on LCM of 721, 991, 846, 643, 738
1. What is the LCM of 721, 991, 846, 643, 738?
Answer: LCM of 721, 991, 846, 643, 738 is 15935808855078.
2. How to calculate the LCM of 721, 991, 846, 643, 738?
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, 991, 846, 643, 738.
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}.