Prime and Composite Riddles

Practice identifying prime and composite numbers with this focused worksheet! Students will use a list of clues to determine whether numbers are prime or composite, applying their knowledge of factors, multiples, and divisibility along the way. As they work through each clue, learners will use logic and careful reasoning to determine which numbers fit the given descriptions.

Perfect for fourth-grade students, this worksheet will strengthen understanding of prime and composite numbers while developing critical-thinking and logical-reasoning skills. Students will also reinforce their ability to recognize number relationships and use divisibility to determine whether a number is prime or composite.

For further practice with number theory, Prime and Composite Numbers: Hidden Number #1 and Identifying Prime Numbers Maze.