Factors of 16
16 has 5 factors.
All factors of 16
1, 2, 4, 8, 16
Prime factorization: 2⁴
Number of factors
5
Sum of factors
31
Prime?
No
Factor pairs of 16
Each pair multiplies together to make 16:
| Pair | Product |
|---|---|
| 1 × 16 | 16 |
| 2 × 8 | 16 |
| 4 × 4 | 16 |
Factors of nearby numbers
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Frequently asked questions
What are the factors of 16?+
The factors of 16 are 1, 2, 4, 8, 16 — that is 5 factors in total.
What is the prime factorization of 16?+
The prime factorization of 16 is 2⁴.
Is 16 a prime number?+
No. 16 has 5 factors, more than just 1 and itself, so it is a composite number.