Factors of 1000
1000 has 16 factors.
All factors of 1000
1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1,000
Prime factorization: 2³ × 5³
Number of factors
16
Sum of factors
2,340
Prime?
No
Factor pairs of 1000
Each pair multiplies together to make 1000:
| Pair | Product |
|---|---|
| 1 × 1,000 | 1,000 |
| 2 × 500 | 1,000 |
| 4 × 250 | 1,000 |
| 5 × 200 | 1,000 |
| 8 × 125 | 1,000 |
| 10 × 100 | 1,000 |
| 20 × 50 | 1,000 |
| 25 × 40 | 1,000 |
Factors of nearby numbers
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Frequently asked questions
What are the factors of 1000?+
The factors of 1000 are 1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1,000 — that is 16 factors in total.
What is the prime factorization of 1000?+
The prime factorization of 1000 is 2³ × 5³.
Is 1000 a prime number?+
No. 1000 has 16 factors, more than just 1 and itself, so it is a composite number.