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