Factors of 63
63 has 6 factors.
All factors of 63
1, 3, 7, 9, 21, 63
Prime factorization: 3² × 7
Number of factors
6
Sum of factors
104
Prime?
No
Factor pairs of 63
Each pair multiplies together to make 63:
| Pair | Product |
|---|---|
| 1 × 63 | 63 |
| 3 × 21 | 63 |
| 7 × 9 | 63 |
Factors of nearby numbers
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Frequently asked questions
What are the factors of 63?+
The factors of 63 are 1, 3, 7, 9, 21, 63 — that is 6 factors in total.
What is the prime factorization of 63?+
The prime factorization of 63 is 3² × 7.
Is 63 a prime number?+
No. 63 has 6 factors, more than just 1 and itself, so it is a composite number.