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