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