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Factors of 258: Prime Factorization, Methods, and Examples

The factors of 258 are numbers that yield zero remainders when they become divisors. Since 258 is an even composite number, it will have multiple factors. The given number’s factors can be positive and negative with the condition that their product must be equal to the given number.

Factors of 258

Here are the factors of number 258.

Factors of 258: 1, 2, 3, 6, 43, 86, 129, 258

Negative Factors of 258

The negative factors of 258 are similar to its positive factors, just with a negative sign.

Negative Factors of 258: -1, -2, -3, -6, -43, -86, -129, and -258

Prime Factorization of 258

The prime factorization of 258 is the way of expressing its prime factors in the product form.

Prime Factorization: 2 x 3 x 43

In this article, we will learn about the factors of 258 and how to find them using various techniques such as upside-down division, prime factorization, and factor tree.

What Are the Factors of 258?

The factors of 258 are 1, 2, 3, 6, 43, 86, 129, and 258. All of these numbers are the factors as they do not leave any remainder when divided by 258.

The factors of 258 are classified as prime numbers and composite numbers. The prime factors of the number 258 can be determined using the technique of prime factorization.

How To Find the Factors of 258?

You can find the factors of 258 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 258, create a list containing the numbers that are exactly divisible by 258 with zero remainders. One important thing to note is that 1 and 258 are the 258’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 258 are determined as follows:

\[\dfrac{258}{1} = 258\]

\[\dfrac{258}{2} = 129\]

\[\dfrac{258}{3} = 86\]

\[\dfrac{258}{258} = 1\]

Therefore, 1, 2, 3, 6, 43, 86, 129, and 258 are the factors of 258.

Total Number of Factors of 258

For 258, there are eight positive factors and eight negative ones. So in total, there are 16 factors of 258. 

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

  1. Find the prime 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 258 is given as:

Factorization of 258 is 1 x 2 x 3 x 43.

All of the exponents are equal to 1.

Adding 1 to each and multiplying them together results in 16.

Therefore, the total number of factors of 258 is 16. 8 are positive and eight 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 258 by Prime Factorization

The number 258 is composite. Prime factorization is a valuable technique for finding the number’s prime factors and expressing the number as the product of its prime factors.

Before finding the factors of 258 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 258, 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 258 can be expressed as:

258 = 2 x 3 x 43

Factors of 258 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 258, the factor pairs can be found as:

1 x 258 = 258

2 x 129 = 258

3 x 86 = 258

6 x 43 = 258

The possible factor pairs of 258 are given as (1, 258),(2, 129),(3, 86), and (6, 43).

All these numbers in pairs, when multiplied, give 258 as the product.

The negative factor pairs of 258 are given as:

-1 x -258 = 258 

-2 x -129 = 258

-3 x -86 = 258

-4 x -63 = 258

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, -3, -6, -43, -86, -129 and -258 are called negative factors of 258.

The list of all the factors of 258, including positive as well as negative numbers, is given below.

Factor list of 258: 1, -1, 2, -2, 3, -3, 6, -6, 43, -43, 86, -86, 129, -129, 258, and -258

Factors of 258 Solved Examples

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

Example 1

How many factors of 258 are there?

Solution

The total number of Factors of 258 is 8.

Factors of 258 are 1, 2, 3, 6, 43, 86, 129, and 258.

Example 2

Find the factors of 258 using prime factorization.

Solution

The prime factorization of 258 is given as:

258 $\div$ 2 = 129 

129 $\div$ 3 = 43

43 $\div$ 43 = 1 

So the prime factorization of 258 can be written as:

2 x 3 x 43= 258

Factors of 257|Factors List| Factors of 259

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