Prime Factorization Worksheets

Math · Grades 4–7

Prime Factorization Worksheets

A printable math worksheet for grades 4-7 on prime factorization. Students use factor trees to write six numbers as products of primes, then build trees and reason about four more. A complete answer key is included.

Prime Factorization Lessons and Resources

Worksheet · Grades 4–7

Prime Factorization Worksheet

A printable math worksheet for grades 4-7 on prime factorization. Students use factor trees to write six numbers as products of primes, then build trees and reason about four more. A complete answer key is included.