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A composite number is a whole number with more than two factors. This means that there is at least one number different than 1 and the number itself that divides this number evenly.
| Number | Factors | Composite? |
|---|---|---|
| 4 | 1, 2, and 4 | ✓ |
| 6 | 1, 2, 3, and 6 | ✓ |
| 7 | 1 and 7 | * |
The set of composite numbers contains infinitely many numbers.