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