LCM of 721, 989, 706, 189
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 721, 989, 706, 189 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, 989, 706, 189. So, keep reading to learn more.
Given numbers are 721,989,706,189
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 721,989,706,189 is 13592521278.
Find LCM of 721,989,706,189 with Prime Factorization
| 7 | 721, 989, 706, 189 |
| 103, 989, 706, 27 |
Multiply the prime numbers at the bottom and the left side.
7 x 103 x 989 x 706 x 27 = 13592521278
Therefore, the lowest common multiple of 721,989,706,189 is 13592521278.
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 989 x 706 x 189 = 95147648946
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
989 : 1, 23, 43, 989
706 : 1, 2, 353, 706
189 : 1, 3, 7, 9, 21, 27, 63, 189
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 721,989,706,189, is 1.
Now, the common factors can be found like this.
721:7x 103
989:23x 43
706:2x 353
189:3x 3x 3x 7
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
7 = 7
Therefore, the value for common factors is 7.
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 = 95147648946/(1x7)
LCM = 95147648946/7
LCM = 13592521278
Thus, we can understand that the LCM of 721,989,706,189 is 13592521278.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 721, 989, 706, 189
1. What is the LCM of 721, 989, 706, 189?
Answer: LCM of 721, 989, 706, 189 is 13592521278.
2. How to calculate the LCM of 721, 989, 706, 189?
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, 989, 706, 189.
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}.