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