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