Factors of 4
4 has 3 factors.
All factors of 4
1, 2, 4
Prime factorization: 2²
Number of factors
3
Sum of factors
7
Prime?
No
Factor pairs of 4
Each pair multiplies together to make 4:
| Pair | Product |
|---|---|
| 1 × 4 | 4 |
| 2 × 2 | 4 |
Factors of nearby numbers
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Frequently asked questions
What are the factors of 4?+
The factors of 4 are 1, 2, 4 — that is 3 factors in total.
What is the prime factorization of 4?+
The prime factorization of 4 is 2².
Is 4 a prime number?+
No. 4 has 3 factors, more than just 1 and itself, so it is a composite number.