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