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