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Prime Numbers Worksheets

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Prime Numbers Worksheets

2 resources

Worksheet
Worksheet4th GradePrime Numbers Worksheet

This Prime Numbers Worksheet helps 4th graders identify prime and composite numbers by listing every factor and explaining their reasoning in a word problem. An answer key is included, so practice is fast to assign and easy to check.

Worksheet
Worksheet5th GradePrime Factorization Worksheet

This prime factorization worksheet lets 5th graders complete five factor trees and write each number's prime factorization. A full answer key is included, making it perfect for no-prep practice, homework, or math centers.