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