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