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