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