Factors of 7
There are 2 factors of 7 — the full list is below, with factor pairs, prime factorization, and divisibility notes.
Factors of 7
1, 7
Factor pairs of 7
- 1 × 7
Prime factorization of 7
7 = 7
Number facts
- 7 is a prime number.
- 7 has 2 factors.
- 7 is not a perfect square.
- The sum of all factors of 7 is 8.
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How the factors of 7 are calculated
To find the factors of 7, every whole number from 1 up to the square root of 7(about 2.65) is tested for even division. 7 is odd, and it turns out to be prime — no whole number other than 1 and 7 itself divides it evenly. Written as a product of primes, 7 = 7.
Frequently asked questions about 7
How many factors does 7 have?
7 has 2 factors: 1, 7.
Is 7 a prime number?
Yes. 7 is prime because its only factors are 1 and 7 itself.
What are the factor pairs of 7?
The factor pairs of 7 are 1 × 7.
What is the prime factorization of 7?
The prime factorization of 7 is 7.