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