Factors of 161
161 has 4 factors.
All factors of 161
1, 7, 23, 161
Prime factorization: 7 × 23
Number of factors
4
Sum of factors
192
Prime?
No
Factor pairs of 161
Each pair multiplies together to make 161:
| Pair | Product |
|---|---|
| 1 × 161 | 161 |
| 7 × 23 | 161 |
Factors of nearby numbers
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Frequently asked questions
What are the factors of 161?+
The factors of 161 are 1, 7, 23, 161 — that is 4 factors in total.
What is the prime factorization of 161?+
The prime factorization of 161 is 7 × 23.
Is 161 a prime number?+
No. 161 has 4 factors, more than just 1 and itself, so it is a composite number.