Factors of 32
There are 6 factors of 32 — the full list is below, with factor pairs, prime factorization, and divisibility notes.
Factors of 32
1, 2, 4, 8, 16, 32
Factor pairs of 32
- 1 × 32
- 2 × 16
- 4 × 8
Prime factorization of 32
32 = 2⁵
Number facts
- 32 is a composite number.
- 32 has 6 factors.
- 32 is not a perfect square.
- The sum of all factors of 32 is 63.
Divisibility rules that apply to 32
- 32 is divisible by 2 because it ends in an even digit (0, 2, 4, 6, or 8).
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How the factors of 32 are calculated
To find the factors of 32, every whole number from 1 up to the square root of 32(about 5.66) is tested for even division. 32 is even, and it divides evenly by 2, 4, 8, 16. Written as a product of primes, 32 = 2⁵.
Frequently asked questions about 32
How many factors does 32 have?
32 has 6 factors: 1, 2, 4, 8, 16, 32.
Is 32 a prime number?
No. 32 is composite because it has factors other than 1 and itself.
What are the factor pairs of 32?
The factor pairs of 32 are 1 × 32, 2 × 16, 4 × 8.
What is the prime factorization of 32?
The prime factorization of 32 is 2⁵.