Prime and Composite Numbers
Examples: 2, 3, 5, 7, 11
Examples: 4, 6, 8, 9, 10
A factor is a whole number that divides another number exactly, with no remainder.
For example, the factors of 6 are 1, 2, 3 and 6.
Remember: 1 is neither prime nor composite.
Complete the Definitions
Complete the sentences with words from the box. Use each word once.
1. A prime number is a whole number than 1.
2. A prime number has exactly factors.
3. Its factors are 1 and the number .
4. A composite number has more than two .
5. We can make a composite number by two smaller numbers.
6. The smaller numbers must be numbers.
7. The number 1 is prime nor composite.
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Prime or Composite?
Drag the 12 numbers into the correct categories: Prime numbers and Composite numbers. Each category can hold several numbers, and their order does not matter.
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