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