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