Factors of 5
There are 2 factors of 5 — the full list is below, with factor pairs, prime factorization, and divisibility notes.
Factors of 5
1, 5
Factor pairs of 5
- 1 × 5
Prime factorization of 5
5 = 5
Number facts
- 5 is a prime number.
- 5 has 2 factors.
- 5 is not a perfect square.
- The sum of all factors of 5 is 6.
Divisibility rules that apply to 5
- 5 is divisible by 5 because it ends in 0 or 5.
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How the factors of 5 are calculated
To find the factors of 5, every whole number from 1 up to the square root of 5(about 2.24) is tested for even division. 5 is odd, and it turns out to be prime — no whole number other than 1 and 5 itself divides it evenly. Written as a product of primes, 5 = 5.
Frequently asked questions about 5
How many factors does 5 have?
5 has 2 factors: 1, 5.
Is 5 a prime number?
Yes. 5 is prime because its only factors are 1 and 5 itself.
What are the factor pairs of 5?
The factor pairs of 5 are 1 × 5.
What is the prime factorization of 5?
The prime factorization of 5 is 5.