Free online math practice
Prime and composite Practice
Choose prime, composite or neither for numbers from 1 to 100.
Start practicingPrime and composite
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What you’ll practice
A prime has exactly two positive factors. The number 1 is neither prime nor composite.
Where this helps
Recognizing how numbers factor.
Before you start
Use this topic to practice math you have already learned. The examples show the available kinds of recall tasks; this is not a complete textbook chapter. Check the answer form and any stated conditions.
Try a few examples
Real practice. Real progress.
Example 1 of 4
Choose an answer.
Grades and courses that include this topic
Grades (US)
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Start practicingPrime and composite
- Free to practice.
- No account required.
- Progress stays on this device.