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