LCM of 643, 973, 161, 803
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 643, 973, 161, 803 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 643, 973, 161, 803. So, keep reading to learn more.
Given numbers are 643,973,161,803
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 643,973,161,803 is 11554926691.
Find LCM of 643,973,161,803 with Prime Factorization
| 7 | 643, 973, 161, 803 |
| 643, 139, 23, 803 |
Multiply the prime numbers at the bottom and the left side.
7 x 643 x 139 x 23 x 803 = 11554926691
Therefore, the lowest common multiple of 643,973,161,803 is 11554926691.
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.
643 x 973 x 161 x 803 = 80884486837
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.
643 : 1, 643
973 : 1, 7, 139, 973
161 : 1, 7, 23, 161
803 : 1, 11, 73, 803
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 643,973,161,803, is 1.
Now, the common factors can be found like this.
643:643
973:7x 139
161:7x 23
803:11x 73
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 = 80884486837/(1x7)
LCM = 80884486837/7
LCM = 11554926691
Thus, we can understand that the LCM of 643,973,161,803 is 11554926691.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 643, 973, 161, 803
1. What is the LCM of 643, 973, 161, 803?
Answer: LCM of 643, 973, 161, 803 is 11554926691.
2. How to calculate the LCM of 643, 973, 161, 803?
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 643, 973, 161, 803.
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}.