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