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 {5, 19, 3, 23, 2, 13} → ______
- Prime numbers in {21, 12, 15, 17, 25, 27} → ______
- Prime numbers in {8, 17, 21, 3, 5, 2} → ______
- Prime numbers in {7, 19, 2, 29, 5, 9} → ______
- Prime numbers in {13, 7, 21, 19, 29, 11} → ______
- Prime numbers in {2, 3, 17, 19, 27, 12} → ______
- Prime numbers in {23, 17, 25, 29, 27, 7} → ______
- Prime numbers in {21, 11, 3, 9, 5, 13} → ______
- Prime numbers in {5, 3, 13, 29, 15, 9} → ______
- Prime numbers in {29, 19, 2, 12, 21, 27} → ______
- Prime numbers in {23, 21, 19, 29, 25, 7} → ______
- Prime numbers in {12, 13, 9, 15, 19, 7} → ______
- Prime numbers in {12, 2, 15, 21, 8, 27} → ______
- Prime numbers in {17, 9, 23, 29, 19, 21} → ______
- Prime numbers in {21, 11, 8, 17, 3, 2} → ______
- Prime numbers in {23, 29, 12, 9, 27, 25} → ______
- Prime numbers in {23, 5, 9, 27, 3, 11} → ______
- Prime numbers in {27, 15, 11, 25, 2, 21} → ______
- Prime numbers in {5, 11, 2, 13, 17, 23} → ______
- Prime numbers in {12, 25, 7, 13, 23, 21} → ______