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