Prime & Composite Worksheet
Recommended for 4th Grade — 6th Grade
Prime & Composite Worksheet
Name: ____________________Date: ____________
Instructions: Identifying prime and composite numbers and writing prime factorizations.
20 problems
- Prime numbers in {2, 9, 17, 15, 19, 23} → ______
- Prime numbers in {19, 12, 3, 13, 27, 23} → ______
- Prime numbers in {7, 21, 5, 25, 8, 9} → ______
- Prime numbers in {11, 13, 21, 29, 5, 17} → ______
- Prime numbers in {27, 13, 21, 5, 29, 17} → ______
- Prime numbers in {2, 19, 7, 12, 21, 9} → ______
- Prime numbers in {12, 8, 3, 2, 15, 21} → ______
- Prime numbers in {27, 8, 15, 2, 13, 25} → ______
- Prime numbers in {25, 21, 29, 17, 23, 15} → ______
- Prime numbers in {5, 17, 7, 29, 27, 9} → ______
- Prime numbers in {12, 19, 11, 2, 3, 17} → ______
- Prime numbers in {13, 23, 12, 11, 8, 25} → ______
- Prime numbers in {27, 13, 17, 21, 25, 5} → ______
- Prime numbers in {21, 29, 5, 15, 11, 3} → ______
- Prime numbers in {13, 5, 7, 3, 19, 2} → ______
- Prime numbers in {13, 3, 5, 2, 8, 7} → ______
- Prime numbers in {5, 9, 13, 15, 7, 21} → ______
- Prime numbers in {21, 15, 13, 7, 3, 9} → ______
- Prime numbers in {19, 25, 7, 11, 29, 5} → ______
- Prime numbers in {13, 9, 27, 3, 8, 21} → ______