Math · Grades 4–6
Prime and Composite Numbers Worksheets
A printable math worksheet for grades 4-6 on prime and composite numbers: a prime number has exactly two factors while a composite number has more than two. Students classify eight numbers, then answer four short questions including why 1 is neither. A complete answer key is included.
Prime and Composite Numbers Lessons and Resources
Worksheet · Grades 4–6
Prime and Composite Numbers Worksheet
A printable math worksheet for grades 4-6 on prime and composite numbers: a prime number has exactly two factors while a composite number has more than two. Students classify eight numbers, then answer four short questions including why 1 is neither. A complete answer key is included.