What are the Positive Divisors (or Factors) of 12?
The positive divisors of 12 are 1, 2, 3, 4, 6, 12. Numbers that divide a number without leaving a remainder are also called its factors. To find the divisors (or factors) of a number, you can follow the steps below.
In mathematics, for a number X to be completely divisible by Y, the remainder must be 0 when X is divided by Y. To find the divisors of a number, you should check the division of all integers from 1 up to half of the number X, and verify if the remainder is 0.
The positive divisors or factors of 12 are "1, 2, 3, 4, 6, 12".
If number X is divisible by number Y, then -X is also divisible by Y. Therefore, the negative of each positive divisor of a number is also a divisor of that number.
How to Calculate the Number of Positive Divisors of 12?
To find the number of positive divisors of a number, we first need to find its prime factors.
Prime factors of 12 = ( 2 × 2 × 3 ) = ( 22 × 31 )
By multiplying one plus the exponents of the above prime factors, we get the number of positive divisors.
( 2 + 1 ) × ( 1 + 1 ) = 3 × 2 = 6
As a result of this calculation, we can say that the number 12 has 6 positive divisors. If we want to include negative divisors as well, we need to multiply this number by 2. So, we can say that the number 12 has a total of 12 divisors.
Characteristics of Divisors
The divisors of 12 are not only positive integers but also negative integers. For example, if 2 is a divisor of 12, then -2 is also a divisor.
The divisors of a number are combinations of its factors. These divisors can be found by breaking down the number into its prime factors.
Sum of the Divisors of 12
Finding the sum of all divisors of 12 is important to understand the properties of the number. The sum of the divisors of 12 can be calculated as follows:
- First, list all positive divisors.
- Sum these divisors.
For example, the positive divisors of 12 are 1, 2, 3, 4, 6, 12, so their sum is 28.
Relationship Between Division and Multiplication
There is a strong relationship between the divisors and factors of a number. The factors of 12 are the same group of numbers as its divisors, but this relationship arises from the inverse operations of multiplication and division.
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