Factors of 208: Prime Factorization, Methods, and Examples

The factors of 208 are the numbers that always produce zero as the remainder whenever the numbers act as the divisors. The factors of 208 can be both positive as well as negative. 

Factors Of 208

The number 208 is an even composite number so it has multiple factors.  

Factors of 208

Here are the factors of number 1, 2, 4, 8, 13, 16, 26, 52, 104, 208

Factors of 208: 1, 2, 4, 8, 13, 16, 26, 52, 104, and 208

Negative Factors of 208

The negative factors of 208 are similar to its positive factors, just with a negative sign.

Negative Factors of 208: -1, -2, -4, -8, -13, -16, -26, -52, -104, and -208

Prime Factorization of 208

The prime factorization of 208 is the way of expressing its prime factors in the product form.

Prime Factorization = $2^{4}$ x 13

In this article, we will learn about the factors of 208 and how to find them using various techniques such as upside-down division, prime factorization, and factor tree.

What Are the Factors of 208?

The factors of 208 are 1, 2, 4, 8, 13, 16, 26, 52, 104, and 208. All of these numbers are the factors as they do not leave any remainder when divided by 208.

The factors of 208 are classified as prime numbers and composite numbers. The prime factors of the number 208 can be determined using the technique of prime factorization.

How To Find the Factors of 208?

You can find the factors of 208 by using the rules of divisibility. The divisibility rule states that any number, when divided by any other natural number, is said to be divisible by the number if the quotient is the whole number and the resulting remainder is zero.

To find the factors of 208, create a list containing the numbers that are exactly divisible by 208 with zero remainders. One important thing to note is that 1 and 208 are the 208’s factors as every natural number has 1 and the number itself as its factor.

1 is also called the universal factor of every number. The factors of 208 are determined as follows:

\[\dfrac{208}{1} = 208\]

\[\dfrac{208}{2} = 104\]

\[\dfrac{208}{4} = 52\]

\[\dfrac{208}{8} = 26\]

\[\dfrac{208}{13} = 16 \]

\[\dfrac{208}{16} = 13\]

\[\dfrac{208}{26} = 8\]

\[\dfrac{208}{52} = 4\]

\[\dfrac{208}{104} = 2\]

\[\dfrac{208}{208} =1\]

Therefore, 1, 2, 4, 8, 13, 16, 26, 52, 104, and 208 are the factors of 208.

Total Number of Factors of 208

For 208 there are 10 positive factors and 10 negative ones. So in total, there are 20 factors of 208. 

To find the total number of factors of the given number, follow the procedure mentioned below:

  1. Find the factorization of the given number.
  2. Demonstrate the prime factorization of the number in the form of exponent form.
  3. Add 1 to each of the exponents of the prime factor.
  4. Now, multiply the resulting exponents together. This obtained product is equivalent to the total number of factors of the given number.

By following this procedure the total number of factors of 208 is given as:

Factorization= 1 x $2^{4}$ x 13

The exponent of 1 and 13 is 1, while that of 2 is 4.

Adding 1 to each and multiplying them together results in 20.

Therefore, the total number of factors of 208 is 20. 10 are positive and 10 factors are negative.

Important Notes

Here are some important points that must be considered while finding the factors of any given number:

  • The factor of any given number must be a whole number.
  • The factors of the number cannot be in the form of decimals or fractions.
  • Factors can be positive as well as negative.
  • Negative factors are the additive inverse of the positive factors of a given number.
  • The factor of a number cannot be greater than that number.
  • Every even number has 2 as its prime factor, the smallest prime factor.

Factors of 208 by Prime FactorizationFactor of 208 by Prime Factorization

The number 208 is a composite number. Prime factorization is a useful technique for finding the number’s prime factors and expressing the number as the product of its prime factors.

Before finding the factors of 208 using prime factorization, let us find out what prime factors are. Prime factors are the factors of any given number that are only divisible by 1 and themselves.

To start the prime factorization of 208, start dividing by its smallest prime factor. First, determine that the given number is either even or odd. If it is an even number, then 2 will be the smallest prime factor.

Continue splitting the quotient obtained until 1 is received as the quotient. The prime factorization of 208 can be expressed as:

208 = $2^{4}$ x 13

Factors of 208 in PairsFactor of 208 in Pairs

The factor pairs are the duplet of numbers that when multiplied together result in the factorized number. Factor pairs can be more than one depending on the total number of factors of the given numbers.

For 208, the factor pairs can be found as:

1 x 208 = 208 

2 x 104 = 208 

4 x 52 = 208

8 x 26 =208

13 x 16 =208

The possible factor pairs of 208 are given as (1, 208), (2, 104), (4, 52), (8, 26), and (13, 16).

All these numbers in pairs, when multiplied, give 208 as the product.

The negative factor pairs of 208 are given as:

-1 x -208 = 208 

-2 x -104 = 208 

-4 x -52 = 208

-8 x -26 =208

-13 x -16 =208

It is important to note that in negative factor pairs, the minus sign has been multiplied by the minus sign due to which the resulting product is the original positive number. Therefore, -1, -2, -4, -8, -13, -16, -26, -52, -104, and -208 are called negative factors of 208.

The list of all the factors of 208 including positive as well as negative numbers is given below.

Factor list of 208: 1, -1, 2, -2, 4, -4, 8, -8, 13, -13, 16, -16, 26, -26, 52, -52, 104, -104, 208, and -208

Factors of 208 Solved Examples

To better understand the concept of factors, let’s solve some examples.

Example 1

How many factors of 208 are there?

Solution

The total number of Factors of 208 is 10.

Factors of 208 are 1, 2, 4, 8, 13, 16, 26, 52, 104, and 208.

Example 2

Find the factors of 208 using prime factorization.

Solution

The prime factorization of 208 is given as:

208 $\div$ 2 = 104 

104 $\div$ 2 = 52 

52 $\div$ 2 = 26 

26 $\div$ 2 =13

13 $\div$ 13 =1

So the prime factorization of 208 can be written as:

$2^{4}$ x 13 = 208 

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