Prime and Composite Numbers Practice (Grade 4)
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Prime and Composite Numbers Practice
Instructions:
A prime number is any whole number greater than 1 that has only 1 and itself for factors. The number 5 is prime. 5 only has the numbers 1 and 5 for factors.
A composite number is any whole number that has factors other than just 1 and itself. The number 10 is composite. It has the numbers 1, 2, 5, and 10 for factors.
Use your knowledge of prime and composite numbers to answer the following questions.