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