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