Factors of 55
55 has 4 factors.
All factors of 55
1, 5, 11, 55
Prime factorization: 5 × 11
Number of factors
4
Sum of factors
72
Prime?
No
Factor pairs of 55
Each pair multiplies together to make 55:
| Pair | Product |
|---|---|
| 1 × 55 | 55 |
| 5 × 11 | 55 |
Factors of nearby numbers
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Frequently asked questions
What are the factors of 55?+
The factors of 55 are 1, 5, 11, 55 — that is 4 factors in total.
What is the prime factorization of 55?+
The prime factorization of 55 is 5 × 11.
Is 55 a prime number?+
No. 55 has 4 factors, more than just 1 and itself, so it is a composite number.