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