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