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