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