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