What are all the factors, the prime factorization, and factor pairs of 5?

To find the factors of 5, divide 5 by each number starting with 1 and working up to 5

Now let us find how to calculate all the factors of 5:
As you can see, the factors of 5 are:
1, 5

Factors of Numbers similar to 5

Introduction to Factors

Factors are the building blocks of numbers that, when multiplied together, result in a product. In the case of the number 5, the factors elucidate its simpleness and its use in various mathematical contexts. Understanding the factors of a number, such as 5, is crucial as it lays the groundwork for advanced mathematical concepts including divisibility, multiples, and prime factorization.

What are Factors of 5?

The factors of a number are the integers that divide the number without leaving a remainder. In the case of 5, it has a very exclusive set of factors. Below, we see a visual representation of pairing factors and a complete list demonstrating the simplicity of the number 5.

  • 1 × 5 = 5
  • 5 × 1 = 5

Thus, the factors of 5 are 1 and 5.

How to Find the Factors of 5?

To find the factors of 5, we use the division method. The factors of a number like 5 will be equal to or less than 5. Thus, we divide 5 by smaller integers to check for factors. The division looks as follows:

  • 5 ÷ 1 = 5
  • 5 ÷ 5 = 1

All other divisions will result in a fractional number, which indicates that 1 and 5 are the only factors of 5.

Pair Factors of 5

Pair factors are two numbers that, when multiplied, equal the product 5. For 5, the process is straightforward:

  • 1 × 5 = 5

1 and 5 are the only positive pair factors of 5. As for negative pair factors:

  • -1 × -5 = 5

Thus, the negative pair factors are (-1, -5).

Prime Factorization of 5

Since 5 is a prime number, its prime factorization is simple. The prime factor of 5 is 5 itself, represented as 5¹. There is no need for a factor tree as 5 is not composite and does not have factors other than 1 and itself.

Important Points to Remember

Here are some key points about the factors of 5:

  • The number 5 has only two factors: 1 and 5.
  • 5 is a prime number.
  • The prime factorization of 5 is simply 5¹.

Understanding the factors of 5 is fundamental to its role as a building block within the number system, particularly its role in creating multiples and identifying divisibility.


Test your understanding of the factors of 5 with the following questions:

  • Is the number 10 a factor of 5?
  • Can 5 be divided into two parts that are equal whole numbers?
  • What multiplication sentence can you write for the factors of 5?

Solutions to Exercises

Here are the solutions to the exercises on the factors of 5:

  • No, 10 is not a factor of 5, but rather a multiple.
  • No, 5 is a prime number and can only be divided by 1 and itself without leaving a remainder.
  • The multiplication sentence for the factors of 5 is 1 × 5 = 5.

Frequently Asked Questions

Is 2 a factor of 5?

No, 2 cannot divide 5 into equal parts without leaving a remainder; thus, it’s not a factor of 5.

Why does 5 have so few factors?

5 has few factors because it is a prime number, meaning it is only divisible by 1 and itself.

Can a number be a factor of itself?

Yes, by definition, a number is always a factor of itself as it divides the number exactly once.

Other conversions of the number 5