 # Factors of 663: Prime Factorization, Methods, and Examples

The factors of 663 are the numbers that give 663 as the product when they are multiplied together. Such numbers form factor pairs. The given number’s factors can be positive and negative, provided that the given number is achieved upon multiplication of two-factor integers.

### Factors of 663

Here are the factors of number 663.

Factors of 663: 1, 3, 13, 17, 39, 51, 221, 663

### Negative Factors of 663

The negative factors of 663 are similar to its positive aspects, just with a negative sign.

Negative Factors of 663: -1, -3, -13, -17, -39, -51, -221, and -663

### Prime Factorization of 663

The prime factorization of 663 is the way of expressing its prime factors in the product form.

Prime Factorization: 3 x 13 x 17

In this article, we will learn about the factors of 663 and how to find them using various techniques such as upside-down division, prime factorization, and factor tree.

## What Are the Factors of 663?

The factors of 663 are 1, 3, 13, 17, 39, 51, 221, and 663. These numbers are the factors as they do not leave any remainder when divided by 663.

The factors of 663 are classified as prime numbers and composite numbers. The prime factors of the number 663 can be determined using the prime factorization technique.

## How To Find the Factors of 663?

You can find the factors of 663 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 663, create a list containing the numbers that are exactly divisible by 663 with zero remainders. One important thing to note is that 1 and 663 are the 663’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 663 are determined as follows:

$\dfrac{663}{1} = 663$

$\dfrac{663}{3} = 221$

$\dfrac{663}{13} = 51$

$\dfrac{663}{17} = 39$

Therefore, 1, 3, 13, 17, 39, 51, 221, and 663 are the factors of 663.

### Total Number of Factors of 663

For 663, there are 8 positive factors and 8 negative ones. So in total, there are 16 factors of 663.

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 663 is given as:

Factorization of 663 is 1 x 13 x 17 x 3.

The exponent of all factors is 1.

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

Therefore, the total number of factors of 663 is 16. 8 are positive, and 8 factors are negative.

### Important Notes

Here are some essential 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 663 by Prime Factorization

The number 663 is a composite number. 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 663 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 663, start dividing by its most minor 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 663 can be expressed as:

663 = 3 x 13 x 17

## Factors of 663 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 given. For 663, the factor pairs can be found as:

1 x 663 = 663

3 x 221 = 663

13 x 51 = 663

17 x 39 = 663

The possible factor pairs of 663 are given as (1, 663), (3, 221), (13, 51), and (17, 39).

All these numbers in pairs, when multiplied, give 663 as the product.

The negative factor pairs of 663 are given as:

-1 x -663 = 663

-3 x -221 = 663

-13 x -51 = 663

-17 x -39 = 663

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, -3, -13, -17, -39, -51, -221, and -663 are called negative factors of 663.

The list of all the factors of 663, including positive as well as negative numbers, is given below.

Factor list of 663: 1, -1, 3, -3, 13, -13, 17, -17, 39, -39, 51, -51, 221, -221, 663, and -663

## Factors of 663 Solved Examples

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

### Example 1

How many factors of 663 are there?

### Solution

The total number of Factors of 663 is 8.

Factors of 663 are 1, 3, 13, 17, 39, 51, 221, and 663.

### Example 2

Find the factors of 663 using prime factorization.

### Solution

The prime factorization of 663 is given as:

663 $\div$ 3 = 221

221 $\div$ 13 = 17

17 $\div$ 17 = 1

So the prime factorization of 663 can be written as:

3 x 13 x 17 = 663