Factors of 123
123 has 4 factors.
All factors of 123
1, 3, 41, 123
Prime factorization: 3 × 41
Number of factors
4
Sum of factors
168
Prime?
No
Factor pairs of 123
Each pair multiplies together to make 123:
| Pair | Product |
|---|---|
| 1 × 123 | 123 |
| 3 × 41 | 123 |
Factors of nearby numbers
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Frequently asked questions
What are the factors of 123?+
The factors of 123 are 1, 3, 41, 123 — that is 4 factors in total.
What is the prime factorization of 123?+
The prime factorization of 123 is 3 × 41.
Is 123 a prime number?+
No. 123 has 4 factors, more than just 1 and itself, so it is a composite number.