Factors of 9
9 has 3 factors.
All factors of 9
1, 3, 9
Prime factorization: 3²
Number of factors
3
Sum of factors
13
Prime?
No
Factor pairs of 9
Each pair multiplies together to make 9:
| Pair | Product |
|---|---|
| 1 × 9 | 9 |
| 3 × 3 | 9 |
Factors of nearby numbers
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Frequently asked questions
What are the factors of 9?+
The factors of 9 are 1, 3, 9 — that is 3 factors in total.
What is the prime factorization of 9?+
The prime factorization of 9 is 3².
Is 9 a prime number?+
No. 9 has 3 factors, more than just 1 and itself, so it is a composite number.