Factors of 11
There are 2 factors of 11 — the full list is below, with factor pairs, prime factorization, and divisibility notes.
Factors of 11
1, 11
Factor pairs of 11
- 1 × 11
Prime factorization of 11
11 = 11
Number facts
- 11 is a prime number.
- 11 has 2 factors.
- 11 is not a perfect square.
- The sum of all factors of 11 is 12.
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How the factors of 11 are calculated
To find the factors of 11, every whole number from 1 up to the square root of 11(about 3.32) is tested for even division. 11 is odd, and it turns out to be prime — no whole number other than 1 and 11 itself divides it evenly. Written as a product of primes, 11 = 11.
Frequently asked questions about 11
How many factors does 11 have?
11 has 2 factors: 1, 11.
Is 11 a prime number?
Yes. 11 is prime because its only factors are 1 and 11 itself.
What are the factor pairs of 11?
The factor pairs of 11 are 1 × 11.
What is the prime factorization of 11?
The prime factorization of 11 is 11.