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